View source for NGC 7010

{{Short description|Galaxy in the constellation Aquarius}}
{{Infobox Galaxy
| name = [[New General Catalogue|NGC]] 7010
| image =SDSS NGC 7010.jpg
| image_size =250px| caption = SDSS image of NGC 7010.
| epoch = [[J2000]]
| type = E+ pec <ref name="ned">{{cite web
| title=NASA/IPAC Extragalactic Database
| work=Results for NGC 7010
| url=http://nedwww.ipac.caltech.edu/
| access-date=2017-05-06 }}</ref>
| ra = {{RA|21|04|39.5}}<ref name="ned" />
| dec = {{DEC|-12|20|18}}<ref name="ned" />
| dist_ly = {{convert|112|Mpc|Mly|abbr=on|lk=on|order=flip}}<ref name="ned" />
| z = 0.028306<ref name="ned" />
| h_radial_v=8,486 km/s<ref name="ned" />
| appmag_v = 14.5<ref name="ned" />
| size_v = 1.9 x 1.0<ref name="ned" />
| constellation name= [[Aquarius (constellation)|Aquarius]]
| names = {{odlist|IC=5082|MCG=-2-53-24|PGC=66039|name=NPM1G -12.0537}}<ref name="ned" />
|size=~{{convert|68.86|kpc|ly|abbr=on|lk=on|order=flip}} (estimated)<ref name="ned" />}}
'''NGC 7010''' is a massive [[elliptical galaxy]] located about 370 million [[light-year]]s from [[Earth]] in the [[constellation]] [[Aquarius (constellation)|Aquarius]].<ref name=":2">{{Cite web|url=https://dso-browser.com/deep-sky/8197/ngc-7010/galaxy|title=Galaxy NGC 7010 Deep Sky Objects Browser|last=Rojas|first=Sebastián García|website=DSO Browser|language=en|access-date=2017-05-06|archive-date=2017-08-07|archive-url=https://web.archive.org/web/20170807070604/https://dso-browser.com/deep-sky/8197/ngc-7010/galaxy|url-status=dead}}</ref><ref name=":0">{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+7010&extend=yes&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES|title=Your NED Search Results|website=ned.ipac.caltech.edu|access-date=2017-05-06}}</ref> NGC 7010 was discovered by astronomer [[John Herschel]] on August 6, 1823, and was later listed by French astronomer [[Guillaume Bigourdan]] as '''IC 5082'''.<ref name=":1">{{Cite web|url=http://cseligman.com/text/atlas/ngc70.htm|title=New General Catalog Objects: NGC 7000 - 7049|website=cseligman.com|language=en-US|access-date=2017-05-08}}</ref> It is host to a [[supermassive black hole]] with an estimated mass of 4.7 × 10<sup>8</sup> [[Solar mass|<var>M</var><sub>☉</sub>]].<ref>{{Cite journal |last1=Arzoumanian |first1=Zaven |last2=Baker |first2=Paul T. |last3=Brazier |first3=Adam |last4=Brook |first4=Paul R. |last5=Burke-Spolaor |first5=Sarah |last6=Becsy |first6=Bence |last7=Charisi |first7=Maria |last8=Chatterjee |first8=Shami |last9=Cordes |first9=James M. |last10=Cornish |first10=Neil J. |last11=Crawford |first11=Fronefield |last12=Cromartie |first12=H. Thankful |last13=Decesar |first13=Megan E. |last14=Demorest |first14=Paul B. |last15=Dolch |first15=Timothy |date=2021-06-01 |title=The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc |journal=The Astrophysical Journal |volume=914 |issue=2 |pages=121 |arxiv=2101.02716 |bibcode=2021ApJ...914..121A |doi=10.3847/1538-4357/abfcd3 |issn=0004-637X |doi-access=free}}</ref>
==Physical characteristics==
NGC 7010 has broad, plateau shaped&nbsp;shells of stars surrounding it which are quite low in surface brightness. These shells are unusually red or redder than the rest of NGC 7010. It is thought that mergers with other galaxies along with phase wrapping causes the lower mass stars in NGC 7010 to be separated from higher mass blue stars in the shells leaving only the higher mass stars in the shells. As these stars [[Stellar evolution|evolve]] and move into the [[Asymptotic giant branch|Asymptotic giant branch (AGB)]] stage, these shells would become very red in color, especially if further star formation is suppressed in the galaxy.<ref>{{cite journal|last1=McGaugh|first1=Stacy S.|last2=Bothun|first2=Gregory D.|title=Stellar populations in shell galaxies|journal=[[The Astronomical Journal]]|date=October 1990|volume=100|pages=1073|doi=10.1086/115580|bibcode=1990AJ....100.1073M|hdl=1903/8712|url=http://drum.lib.umd.edu/bitstream/1903/8712/1/AJv100p1073.pdf|hdl-access=free}}</ref> It's theorized that the shells formed from the accretion of another galaxy.<ref>{{cite journal|last1=Kojima|first1=Makoto|last2=Noguchi|first2=Masafumi|title=Sinking satellite disk galaxies. I. Shell formation preceded by cessation of star formation|journal=[[The Astrophysical Journal]]|date=20 May 1997|volume=481|issue=1|pages=132–156|doi=10.1086/304021|bibcode=1997ApJ...481..132K|doi-access=free}}</ref>
==See also==
* [[Elliptical galaxy]]
* [[NGC 3923]]-proto type [[Shell galaxy]]
* [[List of NGC objects (7001–7840)]]
==References==
{{Reflist}}
==External links==
*{{commons category-inline}}
{{WikiSky}}
{{Ngc75}}
{{Aquarius (constellation)}}
{{DEFAULTSORT:NGC 7010}}
[[Category:Astronomical objects discovered in 1823]]
[[Category:Aquarius (constellation)]]
[[Category:IC objects]]
[[Category:NGC objects|7010]]
[[Category:MCG objects|-2-53-24]]
[[Category:Elliptical galaxies]]
[[Category:Shell galaxies]]
[[Category:Principal Galaxies Catalogue objects|66039]]