An analytic model of gravitational collapse induced by radiative cooling: instability scale, density profile, and mass infall rate
We present an analytic description of the spherically symmetric gravitational collapse of radiatively cooling gas clouds, which illustrates the mechanism by which radiative cooling induces gravitational instability at a characteristic mass scale determined by the microphysics of the gas. The approac...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
2025 January 6
|
| In: |
Monthly notices of the Royal Astronomical Society
Year: 2025, Volume: 537, Issue: 1, Pages: 580-597 |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/staf012 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1093/mnras/staf012 Verlag, kostenfrei, Volltext: https://academic.oup.com/mnras/article/537/1/580/7943696?login=true 
|
| Author Notes: | James Gurian, Boyuan Liu, Donghui Jeong, Takashi Hosokawa, Shingo Hirano and Naoki Yoshida |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1937131963 | ||
| 003 | DE-627 | ||
| 005 | 20250930114512.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 250926s2025 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1093/mnras/staf012 |2 doi | |
| 035 | |a (DE-627)1937131963 | ||
| 035 | |a (DE-599)KXP1937131963 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Gurian, James |e VerfasserIn |0 (DE-588)1377558037 |0 (DE-627)1937132560 |4 aut | |
| 245 | 1 | 3 | |a An analytic model of gravitational collapse induced by radiative cooling |b instability scale, density profile, and mass infall rate |c James Gurian, Boyuan Liu, Donghui Jeong, Takashi Hosokawa, Shingo Hirano and Naoki Yoshida |
| 264 | 1 | |c 2025 January 6 | |
| 300 | |b Illustrationen | ||
| 300 | |a 18 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 26.09.2025 | ||
| 520 | |a We present an analytic description of the spherically symmetric gravitational collapse of radiatively cooling gas clouds, which illustrates the mechanism by which radiative cooling induces gravitational instability at a characteristic mass scale determined by the microphysics of the gas. The approach is based on developing the density-temperature relationship of the gas into a full dynamical model. We convert the density-temperature relationship into a barotropic equation of state, based on which we develop a refined instability criterion and calculate the density and velocity profiles of the gas. From these quantities, we determine the time-dependent mass infall rate on to the centre of the cloud. This approach distinguishes the rapid, quasi-equilibrium contraction of a cooling gas core to high central densities from the legitimate instability this contraction establishes in the envelope. We explicate the model in the context of a primordial mini-halo cooled by molecular hydrogen, and then provide two further examples: a delayed collapse with hydrogen deuteride cooling and the collapse of an atomic-cooling halo. In all three cases, we show that our results agree well with full hydrodynamical treatments. | ||
| 700 | 1 | |a Liu, Boyuan |e VerfasserIn |0 (DE-588)1363820370 |0 (DE-627)1923503472 |4 aut | |
| 700 | 1 | |a Jeong, Donghui |e VerfasserIn |4 aut | |
| 700 | 1 | |a Hosokawa, Takashi |e VerfasserIn |4 aut | |
| 700 | 1 | |a Hirano, Shingo |e VerfasserIn |4 aut | |
| 700 | 1 | |a Yoshida, Naoki |e VerfasserIn |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |a Royal Astronomical Society |t Monthly notices of the Royal Astronomical Society |d Oxford : Oxford Univ. Press, 1827 |g 537(2025), 1 vom: Feb., Seite 580-597 |h Online-Ressource |w (DE-627)314059164 |w (DE-600)2016084-7 |w (DE-576)090955420 |x 1365-2966 |7 nnas |
| 773 | 1 | 8 | |g volume:537 |g year:2025 |g number:1 |g month:02 |g pages:580-597 |g extent:18 |a An analytic model of gravitational collapse induced by radiative cooling instability scale, density profile, and mass infall rate |
| 856 | 4 | 0 | |u https://doi.org/10.1093/mnras/staf012 |x Verlag |x Resolving-System |z kostenfrei |3 Volltext |
| 856 | 4 | 0 | |u https://academic.oup.com/mnras/article/537/1/580/7943696?login=true |x Verlag |z kostenfrei |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20250926 | ||
| 993 | |a Article | ||
| 994 | |a 2025 | ||
| 998 | |g 1363820370 |a Liu, Boyuan |m 1363820370:Liu, Boyuan |d 700000 |d 728500 |e 700000PL1363820370 |e 728500PL1363820370 |k 0/700000/ |k 1/700000/728500/ |p 2 | ||
| 999 | |a KXP-PPN1937131963 |e 4776607360 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"language":["eng"],"title":[{"title_sort":"analytic model of gravitational collapse induced by radiative cooling","title":"An analytic model of gravitational collapse induced by radiative cooling","subtitle":"instability scale, density profile, and mass infall rate"}],"name":{"displayForm":["James Gurian, Boyuan Liu, Donghui Jeong, Takashi Hosokawa, Shingo Hirano and Naoki Yoshida"]},"person":[{"display":"Gurian, James","given":"James","role":"aut","family":"Gurian"},{"given":"Boyuan","role":"aut","display":"Liu, Boyuan","family":"Liu"},{"role":"aut","given":"Donghui","display":"Jeong, Donghui","family":"Jeong"},{"family":"Hosokawa","given":"Takashi","role":"aut","display":"Hosokawa, Takashi"},{"display":"Hirano, Shingo","given":"Shingo","role":"aut","family":"Hirano"},{"given":"Naoki","role":"aut","display":"Yoshida, Naoki","family":"Yoshida"}],"type":{"bibl":"article-journal","media":"Online-Ressource"},"origin":[{"dateIssuedDisp":"2025 January 6","dateIssuedKey":"2025"}],"recId":"1937131963","note":["Gesehen am 26.09.2025"],"relHost":[{"physDesc":[{"extent":"Online-Ressource"}],"disp":"Royal Astronomical SocietyMonthly notices of the Royal Astronomical Society","id":{"doi":["10.1111/(ISSN)1365-2966"],"issn":["1365-2966"],"zdb":["2016084-7"],"eki":["314059164"]},"note":["Gesehen am 15.01.2018"],"corporate":[{"display":"Royal Astronomical Society","role":"aut"}],"type":{"media":"Online-Ressource","bibl":"periodical"},"recId":"314059164","origin":[{"publisher":"Oxford Univ. Press ; Blackwell ; Wiley-Blackwell","dateIssuedDisp":"1827-","dateIssuedKey":"1827","publisherPlace":"Oxford ; Oxford [u.a.] ; Oxford [u.a.]"}],"title":[{"title":"Monthly notices of the Royal Astronomical Society","title_sort":"Monthly notices of the Royal Astronomical Society"}],"language":["eng"],"part":{"pages":"580-597","extent":"18","issue":"1","volume":"537","year":"2025","text":"537(2025), 1 vom: Feb., Seite 580-597"},"pubHistory":["1.1827 -"]}],"physDesc":[{"noteIll":"Illustrationen","extent":"18 S."}],"id":{"eki":["1937131963"],"doi":["10.1093/mnras/staf012"]}} | ||
| SRT | |a GURIANJAMEANALYTICMO2025 | ||