The art of modeling stellar mergers and the case of the B[e] supergiant R4 in the Small Magellanic Cloud
Most massive stars exchange mass with a companion, leading to evolution which is altered drastically from that expected of stars in isolation. Such systems result from unusual binary evolution pathways and can place stringent constraints on the physics of these interactions. We use the R4 binary sys...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2020 September 21
|
| In: |
The astrophysical journal
Year: 2020, Jahrgang: 901, Heft: 1 |
| ISSN: | 1538-4357 |
| DOI: | 10.3847/1538-4357/abaf48 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.3847/1538-4357/abaf48
|
| Verfasserangaben: | Samantha Wu, Rosa Wallace Everson, Fabian R.N. Schneider, Philipp Podsiadlowski, and Enrico Ramirez-Ruiz |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 174488949X | ||
| 003 | DE-627 | ||
| 005 | 20220819080629.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 210118s2020 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.3847/1538-4357/abaf48 |2 doi | |
| 035 | |a (DE-627)174488949X | ||
| 035 | |a (DE-599)KXP174488949X | ||
| 035 | |a (OCoLC)1341388757 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Wu, Samantha |e VerfasserIn |0 (DE-588)1244267198 |0 (DE-627)1775503836 |4 aut | |
| 245 | 1 | 4 | |a The art of modeling stellar mergers and the case of the B[e] supergiant R4 in the Small Magellanic Cloud |c Samantha Wu, Rosa Wallace Everson, Fabian R.N. Schneider, Philipp Podsiadlowski, and Enrico Ramirez-Ruiz |
| 264 | 1 | |c 2020 September 21 | |
| 300 | |a 11 | ||
| 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 26.10.2021 | ||
| 520 | |a Most massive stars exchange mass with a companion, leading to evolution which is altered drastically from that expected of stars in isolation. Such systems result from unusual binary evolution pathways and can place stringent constraints on the physics of these interactions. We use the R4 binary system’s B[e] supergiant, which has been postulated to be the product of a stellar merger, to guide our understanding of such outcomes by comparing observations of R4 to the results of simulating a merger with the 3D hydrodynamics code FLASH. Our approach tailors the simulation initial conditions to observed properties of R4 and implements realistic stellar profiles from the 1D stellar evolution code MESA onto the 3D grid, resolving the merger inspiral to within 0.02 R ⊙. We map the merger remnant into MESA to track its evolution on the H-R diagram over a period of 104 yr. This generates a model for a B[e] supergiant with stellar properties, age, and nebula structure in qualitative agreement with those of the R4 system. Our calculations provide evidence to support the idea that R4's B[e] supergiant was originally a member of a triple system in which the inner binary merged after its most massive member evolved off the main sequence, producing a new object of similar mass but significantly more luminosity than the A supergiant companion. The code framework presented in this paper, which was constructed to model tidal encounters, can be used to generate accurate models of a wide variety of merger stellar remnants. | ||
| 700 | 1 | |a Schneider, Fabian |e VerfasserIn |0 (DE-588)1069401307 |0 (DE-627)821861212 |0 (DE-576)42867223X |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t The astrophysical journal |d London : Institute of Physics Publ., 1995 |g 901(2020,1) Artikel-Nummer 44, 11 Seiten |h Online-Ressource |w (DE-627)269019219 |w (DE-600)1473835-1 |w (DE-576)077662733 |x 1538-4357 |7 nnas |a The art of modeling stellar mergers and the case of the B[e] supergiant R4 in the Small Magellanic Cloud |
| 773 | 1 | 8 | |g volume:901 |g year:2020 |g number:1 |g extent:11 |a The art of modeling stellar mergers and the case of the B[e] supergiant R4 in the Small Magellanic Cloud |
| 856 | 4 | 0 | |u https://doi.org/10.3847/1538-4357/abaf48 |x Verlag |x Resolving-System |z lizenzpflichtig |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20210118 | ||
| 993 | |a Article | ||
| 994 | |a 2020 | ||
| 998 | |g 1069401307 |a Schneider, Fabian |m 1069401307:Schneider, Fabian |d 700000 |d 714000 |d 714100 |e 700000PS1069401307 |e 714000PS1069401307 |e 714100PS1069401307 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714100/ |p 3 | ||
| 999 | |a KXP-PPN174488949X |e 3838834542 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"type":{"bibl":"article-journal","media":"Online-Ressource"},"note":["Gesehen am 26.10.2021"],"language":["eng"],"recId":"174488949X","title":[{"title":"The art of modeling stellar mergers and the case of the B[e] supergiant R4 in the Small Magellanic Cloud","title_sort":"art of modeling stellar mergers and the case of the B[e] supergiant R4 in the Small Magellanic Cloud"}],"person":[{"role":"aut","display":"Wu, Samantha","roleDisplay":"VerfasserIn","given":"Samantha","family":"Wu"},{"display":"Schneider, Fabian","roleDisplay":"VerfasserIn","role":"aut","family":"Schneider","given":"Fabian"}],"physDesc":[{"extent":"11 S."}],"relHost":[{"physDesc":[{"extent":"Online-Ressource"}],"name":{"displayForm":["publ. in coll. with the American Astronomical Society. S. Chandrasekhar, managing ed"]},"id":{"zdb":["1473835-1"],"eki":["269019219"],"issn":["1538-4357"]},"origin":[{"publisher":"Institute of Physics Publ. ; Univ. of Chicago Press","dateIssuedDisp":"[1995?]-","publisherPlace":"London ; Chicago, Ill. [u.a.]"}],"recId":"269019219","language":["eng"],"note":["Gesehen am 18.01.2022","Fortsetzung der Druck-Ausgabe"],"disp":"The art of modeling stellar mergers and the case of the B[e] supergiant R4 in the Small Magellanic CloudThe astrophysical journal","type":{"bibl":"periodical","media":"Online-Ressource"},"titleAlt":[{"title":"The astrophysical journal / 1"},{"title":"ApJ"}],"part":{"year":"2020","issue":"1","text":"901(2020,1) Artikel-Nummer 44, 11 Seiten","volume":"901","extent":"11"},"pubHistory":["Vol. 447 (1995) [?]-"],"title":[{"subtitle":"an international review of spectroscopy and astronomical physics","title":"The astrophysical journal","title_sort":"astrophysical journal"}]}],"origin":[{"dateIssuedKey":"2020","dateIssuedDisp":"2020 September 21"}],"id":{"eki":["174488949X"],"doi":["10.3847/1538-4357/abaf48"]},"name":{"displayForm":["Samantha Wu, Rosa Wallace Everson, Fabian R.N. Schneider, Philipp Podsiadlowski, and Enrico Ramirez-Ruiz"]}} | ||
| SRT | |a WUSAMANTHAARTOFMODEL2020 | ||