NGC 5490

{{Short description|Radio galaxy in the constellation Boötes}} {{Sky|14|09|57.330|+|17|32|43.53}} {{Infobox Galaxy | name = NGC 5490 | image = [[File:NGC5490 - SDSS DR14.jpg|250px]] | caption = [[Sloan Digital Sky Survey|SDSS]] image of NGC 5490 | epoch = [[J2000]] | type = E<ref name=ned/> | ra = {{RA|14|09|57.330}}<ref name="ApJ131_1163"/> | dec = {{DEC|+17|32|43.53}}<ref name="ApJ131_1163"/> | dist_ly = {{Convert|69.18|+/-|0.09|Mpc|Mly||abbr=on|lk=on|order=flip}}<ref name=aj146_86/> | z = 0.016693<ref name=apj560_2_566/> | h_radial_v = 4838 ± 14 km/s{{r|ned}} | appmag_v = 12.9<ref name=ned/> | size_v = {{nowrap|1.443′ × 1.126′}}<ref name="ApJ131_1163"/> | group_cluster = NGC 5490 Group (LGG 376) | size = ~{{convert|57.75|kpc|ly|abbr=on|lk=on|order=flip}} (estimated){{r|ned}} | constellation name = [[Boötes]] | notes = See also Gra 1408+17 | names =[[2MASX]] J14095733+1732435, [[Fourth Cambridge Survey|4C]] 17.57, [[Catalogue of Galaxies and of Clusters of Galaxies|CGCG]] 103.095, [[Boss General Catalogue|GC]] 3798, [[H III]]-32, [[List of astronomical catalogues#H|h]] 1752, [[Lyon-Meudon Extragalactic Database|LEDA]] 50558, [[Lyons Groups of Galaxies|LGG]] 376-001, [[MITG]] J1409+1732, [[Morphological Catalogue of Galaxies|MCG]]+03-36-065, [[MRC (catalogue)|MRC]] 1407+177, [[OHIO Q]] 112, [[Lyon-Meudon Extragalactic Database|PGC]] 50558, [[Parkes Observatory|PKS]] 1407+17, [[Uppsala General Catalogue|UGC]] 9058, [[University of Texas at Austin|UT]] 1407+178, [[UZC]] J140957.3+173244, [[Vermillion River Observatory|VRO]] 17.14.01, [[Fritz Zwicky#Catalog of Galaxies and Clusters|Z]] 103-95, [[Fritz Zwicky#Catalog of Galaxies and Clusters|Z]] 1407.6+1747 }}

'''NGC 5490''' is a large [[elliptical galaxy]] located in the [[constellation]] of [[Boötes]]. Its velocity relative to the [[cosmic microwave background]] is 5,075 ± 22 km/s, which corresponds to a [[Hubble's law|Hubble distance]] of {{convert|74.85 ± 5.25|Mpc|Mly|abbr=on|lk=on|order=flip}}.<ref name=ned /> In addition, 13 ''non-redshift'' measurements gives a distance of {{convert|82.777 ± 4.603|Mpc|Mly|abbr=on|lk=on|order=flip}}.<ref>{{cite web | url = https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+5490 | title = Distance Results for NGC{{nbsp}}5490 | website = NASA/IPAC EXTRAGALACTIC DATABASE | publisher = [[NASA]] | access-date = 11 December 2024}}</ref> NGC 5490 was discovered by the [[Germany|German-British]] astronomer [[William Herschel]] on 14 March 1784.<ref name="selig">{{cite web | url = https://cseligman.com/text/atlas/ngc54a.htm#5490 | title = New General Catalogue Objects: NGC{{nbsp}}5490 | last = Seligman | first = Courtney | website = Celestial Atlas | access-date = 11 December 2024}}</ref>

==Supernovae== Two [[supernova]]e have been observed in NGC 5490: * '''SN 1997cn''' ([[type Ia supernova|Type Ia]], mag. 15.8) was discovered by the [[Beijing_Astronomical_Observatory|BAO]] Supernova Survey on 14 May 1997.<ref>{{cite journal | bibcode=1997IAUC.6661....1L| title=Supernova 1997cn in NGC 5490| last1=Li| first1=W. -D.| last2=Qiu| first2=Y. -L.| last3=Qiao| first3=Q. -Y.| last4=Zhang| first4=Y.| last5=Zhou| first5=W.| last6=Hu| first6=J. -Y.| journal=International Astronomical Union Circular| date=1997| issue=6661| page=1 | url=http://www.cbat.eps.harvard.edu/iauc/06600/06661.html#Item1}}</ref><ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1997cn | url=https://www.wis-tns.org/object/1997cn | publisher = [[International Astronomical Union|IAU]] | access-date=11 December 2024}}</ref> * '''SN 2015bo''' (Type Ia, mag. 18.4) was discovered by the [[Catalina Real-time Transient Survey]] on 14 February 2015.<ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}2015bo | url=https://www.wis-tns.org/object/2015bo | publisher = [[International Astronomical Union|IAU]] | access-date=11 December 2024}}</ref>

==Supermassive Black Hole== According to a study published in 2009 and based on the internal velocity of the galaxy measured by the [[Hubble Space Telescope]], the mass of the [[supermassive black hole]] at the center of NGC 5490 is between 260 million and 1.9 billion {{Solar mass}}.<ref>{{cite journal | doi=10.1088/0004-637X/692/1/856| title=UPPER LIMITS ON THE MASSES OF 105 SUPERMASSIVE BLACK HOLES FROM ''HUBBLE SPACE TELESCOPE'' /SPACE TELESCOPE IMAGING SPECTROGRAPH ARCHIVAL DATA| date=2009| last1=Beifiori| first1=A.| last2=Sarzi| first2=M.| last3=Corsini| first3=E. M.| last4=Bontà| first4=E. Dalla| last5=Pizzella| first5=A.| last6=Coccato| first6=L.| last7=Bertola| first7=F.| journal=The Astrophysical Journal| volume=692| issue=1| pages=856–868| arxiv=0809.5103| bibcode=2009ApJ...692..856B}}</ref>

== GRA B1408+17 == According to the [[SIMBAD]] database, NGC 5490 is a [[radio galaxy]].<ref name="SIMBAD-NGC5490"> {{cite simbad | title=NGC 5490 | access-date=11 December 2024}}</ref> GRA B1408+17 is a [[Astronomical radio source|radio-source]] in NGC 5490 located at the coordinates RA {{RA|14|10|24}}, DEC {{DEC|+17|32|00}}.<ref name="SIMBAD-GRA B1408+17"> {{cite simbad | title=GRA B1408+17 | access-date=11 December 2024}}</ref>

==NGC 5490 Group== According to A.M. Garcia, NGC 5490 is the main galaxy in a [[Galaxy_group|group]] that bears its name. The NGC 5490 group (also known as [[Lyons_Groups_of_Galaxies|LGG]] 376) has three other members: IC 982, IC 984, and UGC 9078.<ref>{{cite journal | bibcode=1993A&AS..100...47G | title=General study of group membership. II. Determination of nearby groups | last1=Garcia | first1=A. M. | journal=Astronomy and Astrophysics Supplement Series | date=1993 | volume=100 | page=47}}</ref>

==References== <references> <ref name="ApJ131_1163">{{cite journal |doi=10.1086/498708 |last1=Skrutskie |first1=Michael F. |last2=Cutri |first2=Roc M. |last3=Stiening |first3=Rae |last4=Weinberg |first4=Martin D. |last5=Schneider |first5=Stephen E. |last6=Carpenter |first6=John M. |last7=Beichman |first7=Charles A. |last8=Capps |first8=Richard W. |last9=Chester |first9=Thomas |last10=Elias |first10=Jonathan H. |last11=Huchra |first11=John P. |last12=Liebert |first12=James W. |last13=Lonsdale |first13=Carol J. |last14=Monet |first14=David G. |last15=Price |first15=Stephan |last16=Seitzer |first16=Patrick |last17=Jarrett |first17=Thomas H. |last18=Kirkpatrick |first18=J. Davy |last19=Gizis |first19=John E. |last20=Howard |first20=Elizabeth V. |last21=Evans |first21=Tracey E. |last22=Fowler |first22=John W. |last23=Fullmer |first23=Linda |last24=Hurt |first24=Robert L. |last25=Light |first25=Robert M. |last26=Kopan |first26=Eugene L. |last27=Marsh |first27=Kenneth A. |last28=McCallon |first28=Howard L. |last29=Tam |first29=Robert |last30=Van Dyk |first30=Schuyler D. |last31=Wheelock |first31=Sherry L. |title=The Two Micron All Sky Survey (2MASS) |journal=The Astronomical Journal |date=1 February 2006 |volume=131 |issue=2 |pages=1163–1183 |bibcode=2006AJ....131.1163S |s2cid=18913331 |issn=0004-6256 |doi-access=free }}</ref>

<ref name=aj146_86>{{citation | title=Cosmicflows-2: The Data | last1=Tully | first1=R. Brent | last2=Courtois | first2=Hélène M. | last3=Dolphin | first3=Andrew E. | last4=Fisher | first4=J. Richard | last5=Héraudeau | first5=Philippe | last6=Jacobs | first6=Bradley A. | last7=Karachentsev | first7=Igor D. | last8=Makarov | first8=Dmitry | last9=Makarova | first9=Lidia | last10=Mitronova | first10=Sofia | last11=Rizzi | first11=Luca | last12=Shaya | first12=Edward J. | last13=Sorce | first13=Jenny G. | last14=Wu | first14=Po-Feng | display-authors=1 | journal=The Astronomical Journal | volume=146 | issue=4 | id=86 | pages=25 | date=October 2013 | doi=10.1088/0004-6256/146/4/86 | bibcode=2013AJ....146...86T | postscript = . |arxiv = 1307.7213 | s2cid=118494842 }}</ref>

<ref name=apj560_2_566>{{citation | display-authors=1 | last1=Kochanek | first1=C. S. | last2=Pahre | first2=M. A. | last3=Falco | first3=E. E. | last4=Huchra | first4=J. P. | last5=Mader | first5=J. | last6=Jarrett | first6=T. H. | last7=Chester | first7=T. | last8=Cutri | first8=R. | last9=Schneider | first9=S. E. | title=The K-Band Galaxy Luminosity Function | journal=The Astrophysical Journal | volume=560 | issue=2 | pages=566–579 | date=October 2001 | doi=10.1086/322488 | bibcode=2001ApJ...560..566K | postscript = . |arxiv = astro-ph/0011456 | s2cid=119420446 }}</ref>

<ref name=ned>{{citation | title=NED results for object NGC 5490 | work=NASA/IPAC Extragalactic Database | url=https://ned.ipac.caltech.edu/byname?objname=NGC+5490 | access-date=2015-10-29 | postscript=. }}</ref> </references>

==External links== * {{commons category-inline}} *[http://www.astrosurf.com/agerard/observ_imp/bootes_imp.html Distance] {{Webarchive|url=https://web.archive.org/web/20110607044746/http://www.astrosurf.com/agerard/observ_imp/bootes_imp.html |date=2011-06-07 }} *[http://aladin.u-strasbg.fr/AladinPreview?-c=14+09+57.42%2B17+32+43.4&ident=NGC++5490&submit=Aladin+previewer Image NGC 5490]

[[Category:Boötes]] [[Category:NGC objects|5490]] [[Category:UGC objects|09058]] [[Category:Principal Galaxies Catalogue objects|50558]] [[Category:Radio galaxies]] [[Category:Elliptical galaxies]] [[Category:4C objects]]