A brightest cluster galaxy with an extremely large flat core
Hubble Space Telescope images of the galaxy cluster A2261, obtained as part of the Cluster Lensing And Supernova survey with Hubble, show that the brightest galaxy in the cluster, A2261-BCG, has the largest core yet detected in any galaxy. The cusp radius of A2261-BCG is 3.2 kpc, twice as big as the...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
2012 August 24
|
| In: |
The astrophysical journal
Year: 2012, Volume: 756, Issue: 2 |
| ISSN: | 1538-4357 |
| DOI: | 10.1088/0004-637X/756/2/159 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1088/0004-637X/756/2/159 Verlag, Volltext: http://stacks.iop.org/0004-637X/756/i=2/a=159 
|
| Author Notes: | Marc Postman, Tod R. Lauer, Megan Donahue, Genevieve Graves, Dan Coe, John Moustakas, Anton Koekemoer, Larry Bradley, Holland C. Ford, Claudio Grillo, Adi Zitrin, Doron Lemze, Tom Broadhurst, Leonidas Moustakas, Begoña Ascaso, Elinor Medezinski, and Daniel Kelson |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 158072440X | ||
| 003 | DE-627 | ||
| 005 | 20220815002736.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 180906s2012 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1088/0004-637X/756/2/159 |2 doi | |
| 035 | |a (DE-627)158072440X | ||
| 035 | |a (DE-576)51072440X | ||
| 035 | |a (DE-599)BSZ51072440X | ||
| 035 | |a (OCoLC)1341018216 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Postman, Marc |d 1958- |e VerfasserIn |0 (DE-588)1140137271 |0 (DE-627)898253616 |0 (DE-576)493668047 |4 aut | |
| 245 | 1 | 2 | |a A brightest cluster galaxy with an extremely large flat core |c Marc Postman, Tod R. Lauer, Megan Donahue, Genevieve Graves, Dan Coe, John Moustakas, Anton Koekemoer, Larry Bradley, Holland C. Ford, Claudio Grillo, Adi Zitrin, Doron Lemze, Tom Broadhurst, Leonidas Moustakas, Begoña Ascaso, Elinor Medezinski, and Daniel Kelson |
| 264 | 1 | |c 2012 August 24 | |
| 300 | |a 10 | ||
| 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 06.09.2018 | ||
| 520 | |a Hubble Space Telescope images of the galaxy cluster A2261, obtained as part of the Cluster Lensing And Supernova survey with Hubble, show that the brightest galaxy in the cluster, A2261-BCG, has the largest core yet detected in any galaxy. The cusp radius of A2261-BCG is 3.2 kpc, twice as big as the next largest core known, and 3 × bigger than those typically seen in the most luminous brightest cluster galaxies. The morphology of the core in A2261-BCG is also unusual, having a completely flat interior surface brightness profile, rather than the typical shallow cusp rising into the center. This implies that the galaxy has a core with constant or even centrally decreasing stellar density. Interpretation of the core as an end product of the "scouring" action of a binary supermassive black hole implies a total black hole mass 10 10 M ☉ from the extrapolation of most relationships between core structure and black hole mass. The core falls 1σ above the cusp radius versus galaxy luminosity relation. Its large size in real terms, and the extremely large black hole mass required to generate it, raises the possibility that the core has been enlarged by additional processes, such as the ejection of the black holes that originally generated the core. The flat central stellar density profile is consistent with this hypothesis. The core is also displaced by 0.7 kpc from the center of the surrounding envelope, consistent with a local dynamical perturbation of the core. | ||
| 700 | 1 | |a Zitrin, Adi |e VerfasserIn |0 (DE-588)1049616359 |0 (DE-627)782391079 |0 (DE-576)403602785 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t The astrophysical journal |d London : Institute of Physics Publ., 1995 |g 756(2012,2) Artikel-Nummer 159, 10 Seiten |h Online-Ressource |w (DE-627)269019219 |w (DE-600)1473835-1 |w (DE-576)077662733 |x 1538-4357 |7 nnas |a A brightest cluster galaxy with an extremely large flat core |
| 773 | 1 | 8 | |g volume:756 |g year:2012 |g number:2 |g extent:10 |a A brightest cluster galaxy with an extremely large flat core |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1088/0004-637X/756/2/159 |x Verlag |x Resolving-System |3 Volltext |
| 856 | 4 | 0 | |u http://stacks.iop.org/0004-637X/756/i=2/a=159 |x Verlag |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20180906 | ||
| 993 | |a Article | ||
| 994 | |a 2012 | ||
| 998 | |g 1049616359 |a Zitrin, Adi |m 1049616359:Zitrin, Adi |d 700000 |d 714000 |d 714200 |e 700000PZ1049616359 |e 714000PZ1049616359 |e 714200PZ1049616359 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714200/ |p 11 | ||
| 999 | |a KXP-PPN158072440X |e 3024810196 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"type":{"media":"Online-Ressource","bibl":"article-journal"},"note":["Gesehen am 06.09.2018"],"language":["eng"],"recId":"158072440X","person":[{"family":"Postman","given":"Marc","display":"Postman, Marc","roleDisplay":"VerfasserIn","role":"aut"},{"given":"Adi","family":"Zitrin","role":"aut","roleDisplay":"VerfasserIn","display":"Zitrin, Adi"}],"title":[{"title_sort":"brightest cluster galaxy with an extremely large flat core","title":"A brightest cluster galaxy with an extremely large flat core"}],"physDesc":[{"extent":"10 S."}],"relHost":[{"id":{"zdb":["1473835-1"],"eki":["269019219"],"issn":["1538-4357"]},"origin":[{"publisherPlace":"London ; Chicago, Ill. [u.a.]","publisher":"Institute of Physics Publ. ; Univ. of Chicago Press","dateIssuedDisp":"[1995?]-"}],"name":{"displayForm":["publ. in coll. with the American Astronomical Society. S. Chandrasekhar, managing ed"]},"physDesc":[{"extent":"Online-Ressource"}],"title":[{"title":"The astrophysical journal","subtitle":"an international review of spectroscopy and astronomical physics","title_sort":"astrophysical journal"}],"titleAlt":[{"title":"The astrophysical journal / 1"},{"title":"ApJ"}],"part":{"extent":"10","text":"756(2012,2) Artikel-Nummer 159, 10 Seiten","volume":"756","issue":"2","year":"2012"},"pubHistory":["Vol. 447 (1995) [?]-"],"recId":"269019219","language":["eng"],"note":["Gesehen am 18.01.2022","Fortsetzung der Druck-Ausgabe"],"disp":"A brightest cluster galaxy with an extremely large flat coreThe astrophysical journal","type":{"bibl":"periodical","media":"Online-Ressource"}}],"name":{"displayForm":["Marc Postman, Tod R. Lauer, Megan Donahue, Genevieve Graves, Dan Coe, John Moustakas, Anton Koekemoer, Larry Bradley, Holland C. Ford, Claudio Grillo, Adi Zitrin, Doron Lemze, Tom Broadhurst, Leonidas Moustakas, Begoña Ascaso, Elinor Medezinski, and Daniel Kelson"]},"origin":[{"dateIssuedDisp":"2012 August 24","dateIssuedKey":"2012"}],"id":{"doi":["10.1088/0004-637X/756/2/159"],"eki":["158072440X"]}} | ||
| SRT | |a POSTMANMARBRIGHTESTC2012 | ||