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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Proceedings of Petersburg Transport University</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Proceedings of Petersburg Transport University</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Известия Петербургского университета путей сообщения</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">1815-588X</issn>
   <issn publication-format="online">2658-6851</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">57790</article-id>
   <article-id pub-id-type="doi">10.20295/1815-588X-2023-1-101-109</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Общетехнические задачи и пути их решения</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>GENERAL TECHNICAL PROBLEMS AND SOLUTION APPROACH</subject>
    </subj-group>
    <subj-group>
     <subject>Общетехнические задачи и пути их решения</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Density Distribution in the Gaseous Envelope of the Planet</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Распределение плотности в газовой оболочке планеты</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Бодунов</surname>
       <given-names>Евгений Николаевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Bodunov</surname>
       <given-names>Evgeniy Nikolaevich</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>доктор физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Семенов</surname>
       <given-names>Алексей Олегович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Semenov</surname>
       <given-names>Aleksey Olegovich</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Петербургский государственный университет путей сообщения Императора Александра I</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Emperor Alexander I St. Petersburg State Transport University</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Петербургский государственный университет путей сообщения Императора Александра I</institution>
     <city>Санкт-Петербург</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Emperor Alexander I St. Petersburg State Transport University</institution>
     <city>St. Petersburg</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2023-03-20T21:11:48+03:00">
    <day>20</day>
    <month>03</month>
    <year>2023</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2023-03-20T21:11:48+03:00">
    <day>20</day>
    <month>03</month>
    <year>2023</year>
   </pub-date>
   <volume>20</volume>
   <issue>1</issue>
   <fpage>101</fpage>
   <lpage>109</lpage>
   <history>
    <date date-type="received" iso-8601-date="2023-03-18T00:00:00+03:00">
     <day>18</day>
     <month>03</month>
     <year>2023</year>
    </date>
   </history>
   <self-uri xlink:href="https://itt-pgups.ru/en/nauka/article/57790/view">https://itt-pgups.ru/en/nauka/article/57790/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель: Теоретическое исследование распределения плотности газа вокруг планеты с учетом самогравитации. Методы: Предложенные в настоящей работе уравнения для плотности газовой оболочки планеты с соответствующими граничными условиями решаются аналитически и численно методом Рунге — Кутта. Результаты: Впервые с помощью метода подобия проведен анализ численного решения уравнений для всего пространства, в котором преобладает гравитационное влияние планеты — в диапазоне расстояний от поверхности планеты до радиуса Хилла. Вблизи планеты решение совпадает с классической барометрической формулой, на промежуточных расстояниях — с барометрической формулой, учитывающей зависимость ускорения свободного падения от расстояния до планеты, на больших расстояниях — с зависимостью плотности для сингулярной изотермической газовой сферы, обусловленной самогравитацией. Практическая значимость: На основе полученного решения создана единая картина распределения плотности газовой оболочки планеты. Представленные в работе результаты могут быть полезны как для преподавателей физики вузов, так и для научных сотрудников, занимающихся астрофизикой.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Purpose: Theoretical study of gas density distribution around the planet given self-gravity. Methods: Proposed in this paper equations for the planet gaseous envelope density with corresponding boundary conditions are solved analytically and numerically by Runge-Kutta method. Results: For the first time, the analysis of numerical solution of equations for all the space where the planet gravitational influence prevails - in the distance range from the planet surface till Hill radius - has been pursued using similarity method. Near the planet, the solution coincides with classical barometric formula, at intermediary distances, - with barometric formula which takes into consideration the dependence of free fall acceleration from the distance till the planet, at large distances, - with the dependence of density for singular isothermal gas sphere due to self-gravity. Practical significance: On the basis of the solution obtained, the unified picture of the planet gaseous envelope density distribution was analyzed. The results presented in the paper can be useful both for university physics professors and for the researchers involved in astrophysics.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>Газовая оболочка планеты</kwd>
    <kwd>самогравитация</kwd>
    <kwd>барометрическая формула</kwd>
    <kwd>уравнение Пуассона</kwd>
    <kwd>плотность газа в газовых скоплениях</kwd>
    <kwd>радиус Хилла</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>The planet gaseous environment</kwd>
    <kwd>self-gravity</kwd>
    <kwd>barometric formula</kwd>
    <kwd>Poisson equation</kwd>
    <kwd>gas density in gaseous accumulations</kwd>
    <kwd>Hill radius</kwd>
   </kwd-group>
  </article-meta>
 </front>
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 <back>
  <ref-list>
   <ref id="B1">
    <label>1.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Berberan-Santos M. N. On the Barometric Formula / M. N. Berberan-Santos, E. N. Bodunov, L. Pogliani // Amer. J. Phys. - 1997. - Vol. 65. - P. 404. - DOI: 10.1119/1.18555.</mixed-citation>
     <mixed-citation xml:lang="en">Berberan-Santos M. N. On the Barometric Formula / M. N. Berberan-Santos, E. N. Bodunov, L. Pogliani // Amer. J. Phys. - 1997. - Vol. 65. - P. 404. - DOI: 10.1119/1.18555.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Landau L. D. Statistical Physics / L. D. Landau, E. M. Lifshiz. - Pergamon Press, 1969. - Vol. 5. - P. 108.</mixed-citation>
     <mixed-citation xml:lang="en">Landau L. D. Statistical Physics / L. D. Landau, E. M. Lifshiz. - Pergamon Press, 1969. - Vol. 5. - P. 108.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Berberan-Santos M. N. Liquid - Vapor Equilibrium in a Gravitational Field / M. N. Berberan-Santos, E. N. Bodunov, L. Pogliani // Amer. J. Phys. - 2002. - Vol. 70. - P. 438. DOI: 10.1119/1.1424264.</mixed-citation>
     <mixed-citation xml:lang="en">Berberan-Santos M. N. Liquid - Vapor Equilibrium in a Gravitational Field / M. N. Berberan-Santos, E. N. Bodunov, L. Pogliani // Amer. J. Phys. - 2002. - Vol. 70. - P. 438. DOI: 10.1119/1.1424264.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Berberan-Santos M. N. On the Barometric Formula inside the Earth / M. N. Berberan-Santos, E. N. Bodunov, L. Pogliani // J. Math. Chem. - 2010. - Vol. 47. - P. 990. - DOI: 10.1007/s10910-009-9620-7.</mixed-citation>
     <mixed-citation xml:lang="en">Berberan-Santos M. N. On the Barometric Formula inside the Earth / M. N. Berberan-Santos, E. N. Bodunov, L. Pogliani // J. Math. Chem. - 2010. - Vol. 47. - P. 990. - DOI: 10.1007/s10910-009-9620-7.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rodrigues D. S. Analyzing Atmospheric Pressure Variations in Time and Height: a Didactic Proposal Employing a Smartphone Barometer / D. S. Rodrigues, F. J. Arnold // Revista Brasileira de Ensino de Física. - 2022. - Vol. 44. - P. e20210422. - DOI: 10.1590/1806-9126-RBEF-2021-0422.</mixed-citation>
     <mixed-citation xml:lang="en">Rodrigues D. S. Analyzing Atmospheric Pressure Variations in Time and Height: a Didactic Proposal Employing a Smartphone Barometer / D. S. Rodrigues, F. J. Arnold // Revista Brasileira de Ensino de Física. - 2022. - Vol. 44. - P. e20210422. - DOI: 10.1590/1806-9126-RBEF-2021-0422.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Sliško J. The Physical Cause of Atmospheric Pressure: Weight of Air or Molecular Motion and Impacts? / J. Sliško, T. M. Topalović, M. Božić // The Physics Teacher. - 2021. - Vol. 59. - P. 470. - DOI: 10.1119/10.0006132.</mixed-citation>
     <mixed-citation xml:lang="en">Sliško J. The Physical Cause of Atmospheric Pressure: Weight of Air or Molecular Motion and Impacts? / J. Sliško, T. M. Topalović, M. Božić // The Physics Teacher. - 2021. - Vol. 59. - P. 470. - DOI: 10.1119/10.0006132.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bodunov E. N. Barometric Formula for Non-Isothermal Atmosphere / E. N. Bodunov, G. G. Khokhlov // J. Phys.: Conf. Ser. - 2021. - Vol. 2131. - P. 022053. - DOI: 10.1088/1742-6596/2131/2/022053.</mixed-citation>
     <mixed-citation xml:lang="en">Bodunov E. N. Barometric Formula for Non-Isothermal Atmosphere / E. N. Bodunov, G. G. Khokhlov // J. Phys.: Conf. Ser. - 2021. - Vol. 2131. - P. 022053. - DOI: 10.1088/1742-6596/2131/2/022053.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Wang J. Improving the Vertical Modeling of Tropospheric Delay / J. Wang, K. Balidakis, F. Zus et al. // Geophys. Research Lett. - 2022. - Vol. 49(5). - P. e2021GL096732. - DOI: 10.1029/2021GL096732.</mixed-citation>
     <mixed-citation xml:lang="en">Wang J. Improving the Vertical Modeling of Tropospheric Delay / J. Wang, K. Balidakis, F. Zus et al. // Geophys. Research Lett. - 2022. - Vol. 49(5). - P. e2021GL096732. - DOI: 10.1029/2021GL096732.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Michalak P. Impact of Air Density Variation on a Simulated Earth-to-Air Heat Exchanger’s Performance / P. Michalak // Energies. - 2022. - Vol. 15(9). - P. 3215. - DOI: 10.3390/en15093215.</mixed-citation>
     <mixed-citation xml:lang="en">Michalak P. Impact of Air Density Variation on a Simulated Earth-to-Air Heat Exchanger’s Performance / P. Michalak // Energies. - 2022. - Vol. 15(9). - P. 3215. - DOI: 10.3390/en15093215.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B10">
    <label>10.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Stenner C. Development and Persistence of Hazardous Atmospheres in a Glaciovolcanic Cave System - Mount Rainier, Washington, USA. / C. Stenner, A. Pflitsch, L. J. Florea et al. // J. Cave &amp; Karst Studies. - 2022. - Vol. 84(2). - P. 66. - DOI: 10.4311/2021ex0102.</mixed-citation>
     <mixed-citation xml:lang="en">Stenner C. Development and Persistence of Hazardous Atmospheres in a Glaciovolcanic Cave System - Mount Rainier, Washington, USA. / C. Stenner, A. Pflitsch, L. J. Florea et al. // J. Cave &amp; Karst Studies. - 2022. - Vol. 84(2). - P. 66. - DOI: 10.4311/2021ex0102.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B11">
    <label>11.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Chkeir S. Nowcasting extreme rain and extreme wind speed with machine learning techniques applied to different input datasets / S. Chkeir, A. Anesiadou, A. Mascitelli et al. // Atmospheric Research. - 2023. - Vol. 282. - P. 106548. - DOI: 10.1016/j.atmosres.2022.106548.</mixed-citation>
     <mixed-citation xml:lang="en">Chkeir S. Nowcasting extreme rain and extreme wind speed with machine learning techniques applied to different input datasets / S. Chkeir, A. Anesiadou, A. Mascitelli et al. // Atmospheric Research. - 2023. - Vol. 282. - P. 106548. - DOI: 10.1016/j.atmosres.2022.106548.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B12">
    <label>12.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Dubinov A. E. Mathematical Tricks for Pseudopotentials in the Theories of Nonlinear Waves in Plasmas / A. E. Dubinov // Physics of Plasmas. - 2022. - Vol. 29. - P. 020901. - DOI: 10.1063/5.0078573.</mixed-citation>
     <mixed-citation xml:lang="en">Dubinov A. E. Mathematical Tricks for Pseudopotentials in the Theories of Nonlinear Waves in Plasmas / A. E. Dubinov // Physics of Plasmas. - 2022. - Vol. 29. - P. 020901. - DOI: 10.1063/5.0078573.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B13">
    <label>13.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Dubinov A. E. Barometric Formula for Ultrarelativistic Degenerate Fermi-Gases / A. E. Dubinov // Astrophysics. - 2020. - Vol. 63(4). - P. 580. - DOI: 10.1007/s10511-020-09660-1.</mixed-citation>
     <mixed-citation xml:lang="en">Dubinov A. E. Barometric Formula for Ultrarelativistic Degenerate Fermi-Gases / A. E. Dubinov // Astrophysics. - 2020. - Vol. 63(4). - P. 580. - DOI: 10.1007/s10511-020-09660-1.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B14">
    <label>14.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Moon J. Design of Air-cooled Waste Heat Removal System with String Type Direct Contact Heat Exchanger and Investigation of Oil Film Instability / J. Moon, Y. H. Jeong, Y. Addad // Nuclear Engineering and Technology. - 2020. - Vol. 52(4). - P. 734. - DOI: 10.1016/j.net.2019.10.010.</mixed-citation>
     <mixed-citation xml:lang="en">Moon J. Design of Air-cooled Waste Heat Removal System with String Type Direct Contact Heat Exchanger and Investigation of Oil Film Instability / J. Moon, Y. H. Jeong, Y. Addad // Nuclear Engineering and Technology. - 2020. - Vol. 52(4). - P. 734. - DOI: 10.1016/j.net.2019.10.010.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B15">
    <label>15.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Shu F. N. The Physics of Astrophysics / F. N. Chu. - California: Univer. Sci. Books, 1992. - Vol. II - P. 246.</mixed-citation>
     <mixed-citation xml:lang="en">Shu F. N. The Physics of Astrophysics / F. N. Chu. - California: Univer. Sci. Books, 1992. - Vol. II - P. 246.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B16">
    <label>16.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ткаченко Р. В. Гравитационная неустойчивость газопылевых околоядерных дисков близких галактик / Р. В. Ткаченко, В. И. Корчагин, Б. Б. Жмайлов. // Вестник Санкт-Петербургского университета. Математика. Механика. Астрономия. - 2022. - Т. 9(67). - № 3. - С. 561. - DOI: 10.21638/spbu01.2022.316.</mixed-citation>
     <mixed-citation xml:lang="en">Tkachenko R. V. Gravitacionnaya neustoychivost' gazopylevyh okoloyadernyh diskov blizkih galaktik / R. V. Tkachenko, V. I. Korchagin, B. B. Zhmaylov. // Vestnik Sankt-Peterburgskogo universiteta. Matematika. Mehanika. Astronomiya. - 2022. - T. 9(67). - № 3. - S. 561. - DOI: 10.21638/spbu01.2022.316.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B17">
    <label>17.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Patra N. N. Theoretical modelling of two-component molecular discs in spiral galaxies / N. N. Patra // Astronomy &amp; Astrophysics. - 2020. - Vol. 638. - P. A66. - DOI: 10.1051/0004-6361/201936483.</mixed-citation>
     <mixed-citation xml:lang="en">Patra N. N. Theoretical modelling of two-component molecular discs in spiral galaxies / N. N. Patra // Astronomy &amp; Astrophysics. - 2020. - Vol. 638. - P. A66. - DOI: 10.1051/0004-6361/201936483.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B18">
    <label>18.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bodmer D. Asymptotic tracking position control with active oscillation damping of a multibody Mars vehicle using two artificial augmentation approaches / D. Bodmer, M. Krenmayr, F. Holzapfel // CEAS Space J. - 2022. - Vol. 14. - P. 125. - DOI: 10.1007/s12567-021-00364-6.</mixed-citation>
     <mixed-citation xml:lang="en">Bodmer D. Asymptotic tracking position control with active oscillation damping of a multibody Mars vehicle using two artificial augmentation approaches / D. Bodmer, M. Krenmayr, F. Holzapfel // CEAS Space J. - 2022. - Vol. 14. - P. 125. - DOI: 10.1007/s12567-021-00364-6.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B19">
    <label>19.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Тейлер Р. Строение и эволюция звезд / Р. Тейлер. - М.: Мир, 1973. - 276 с.</mixed-citation>
     <mixed-citation xml:lang="en">Teyler R. Stroenie i evolyuciya zvezd / R. Teyler. - M.: Mir, 1973. - 276 s.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B20">
    <label>20.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Mizuno H. Formation of the Giant Planets / H. Mizuno // Progress of Theoretical Physics. - 1980. - Vol. 64(2). - P. 544. - DOI: 10.1143/PTP.64.544.</mixed-citation>
     <mixed-citation xml:lang="en">Mizuno H. Formation of the Giant Planets / H. Mizuno // Progress of Theoretical Physics. - 1980. - Vol. 64(2). - P. 544. - DOI: 10.1143/PTP.64.544.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B21">
    <label>21.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Semenov A. O. Upper Thermal Boundary Layer of Planetary Atmosphere: An Attempt of Developing a General Model / A. O. Semenov, G. M. Shved // Icarus. - 2008. - Vol. 194(1). - P. 290. - DOI: 10.1016/j.icarus.2007.08.040.</mixed-citation>
     <mixed-citation xml:lang="en">Semenov A. O. Upper Thermal Boundary Layer of Planetary Atmosphere: An Attempt of Developing a General Model / A. O. Semenov, G. M. Shved // Icarus. - 2008. - Vol. 194(1). - P. 290. - DOI: 10.1016/j.icarus.2007.08.040.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B22">
    <label>22.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Shved G. M. The Standard Problem of Nonlocal Thermodynamic Equilibrium Radiative Transfer in the Rovibrational Band of the Planetary Atmosphere / G. M. Shved, A. O. Semenov // Solar System Research. - 2001. - Vol. 35. - P. 212. - DOI: 10.1023/A:1010478906172.</mixed-citation>
     <mixed-citation xml:lang="en">Shved G. M. The Standard Problem of Nonlocal Thermodynamic Equilibrium Radiative Transfer in the Rovibrational Band of the Planetary Atmosphere / G. M. Shved, A. O. Semenov // Solar System Research. - 2001. - Vol. 35. - P. 212. - DOI: 10.1023/A:1010478906172.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B23">
    <label>23.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bodenheimer P. Calculations of the Accretion and Evolution of Giant Planets: The Effects of Solid Cores / P. Bodenheimer, J. B. Pollack // Icarus. - 1986. - Vol. 67(3). - P. 391. - DOI: 10.1016/0019-1035(86)90122-3.</mixed-citation>
     <mixed-citation xml:lang="en">Bodenheimer P. Calculations of the Accretion and Evolution of Giant Planets: The Effects of Solid Cores / P. Bodenheimer, J. B. Pollack // Icarus. - 1986. - Vol. 67(3). - P. 391. - DOI: 10.1016/0019-1035(86)90122-3.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B24">
    <label>24.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Pečnik B. Giant Planet Formation. A First Classification of Isothermal Protoplanetary Equilibria / B. Pečnik, G. Wuchterl // Astronomy &amp; Astrophysics. - 2005. - Vol. 440. - P. 1183. - DOI: 10.1051/0004-6361:200500005.</mixed-citation>
     <mixed-citation xml:lang="en">Pečnik B. Giant Planet Formation. A First Classification of Isothermal Protoplanetary Equilibria / B. Pečnik, G. Wuchterl // Astronomy &amp; Astrophysics. - 2005. - Vol. 440. - P. 1183. - DOI: 10.1051/0004-6361:200500005.</mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
