View source for NGC 3593

{{Short description|Galaxy in the constellation Leo}}
{{Infobox Galaxy
 | name = [[New General Catalogue|NGC]] 3593
 | image = Ngc3593.jpg
 | image_size = 250px
 | caption = An [[infrared]] [[Hubble Space Telescope]] (HST) image of NGC 3593.
 | credit= HST/[[NASA]]/[[ESA]].
 | epoch = [[J2000]]
 | ra = {{RA|11|14|37.002}}<ref name="ApJ131_1163"/>
 | dec = {{DEC|+12|49|04.87}}<ref name="ApJ131_1163"/>
 | constellation name = [[Leo (constellation)|Leo]]
 | dist_ly = {{nowrap|20.5 [[light year|Mly]] (6.28 [[parsec|Mpc]])}}<ref name="Crook2007"/>
 | z = 627<ref name="Crook2007"/> [[km/s]]
 | h_radial_v = 
 | type = SA(s)0/a<ref name="ned"/>
 | appmag_v = 12.6<ref name="ned" />
 | size_v =  {{nowrap|1′.5 × 1′.1}}<ref name="ned" />
 | notes = 
 | names = [[Uppsala General Catalogue|UGC]] 6272,<ref name="ned" /> [[Principal Galaxies Catalogue|PGC]] 34257<ref name="ned" />
}}
'''NGC 3593''' is a [[lenticular galaxy]] located in the [[constellation]] [[Leo (constellation)|Leo]]. It has a [[Galaxy morphological classification|morphological classification]] of SA(s)0/a,<ref name="ned"/> which indicates it is a [[lenticular galaxy]] of the pure spiral type.<ref name="Buta2007"/> Despite this, it has a large amount of [[hydrogen]], both in its molecular ({{chem|H|2}}) and atomic (H) form.<ref name=Nguyen/> It is a [[starburst galaxy]], which means it is forming new stars at a high rate. This is occurring in a band of gas surrounding the central nucleus. There is a single arm, which spirals outward from this ring.<ref name="Coccato2013"/> It is frequently but not consistently identified as a member of the [[Leo Triplet]] group.<ref>{{cite web|url=http://www.messier.seds.org/more/m066gr.html|title=The Leo Triplett (M66 group)|last=McArthur|first=Hartmut Frommert, Christine Kronberg, Guy|website=www.messier.seds.org|access-date=2017-12-22}}</ref>

This galaxy is known to contain two counter-rotating populations of stars—that is, one set of stars is rotating in the opposite direction with respect to the other.<ref name=Nguyen/> One means for this to occur is by acquiring gas from an external source, which then undergoes star formation. An alternative is by a merger with a second galaxy. Neither scenario has been ruled out. The age of the lower mass, counter-rotating population is younger by about {{nowrap|1.6 ± 0.8 Gyr}} than the primary star population of the galaxy.<ref name="Coccato2013"/>

A dynamical study found that there is likely a [[supermassive black hole]] (SMBH) at the center of NGC 3593. The mass of the SMBH is between {{val|3.0e5}} and {{val|4.3e6}} solar masses.<ref name=Nguyen/>

==References==
{{reflist|refs=
<ref name="ned">{{cite web
 | title=NASA/IPAC Extragalactic Database
 | work=Results for NGC 3593
 | url=http://nedwww.ipac.caltech.edu/
 | access-date=2007-04-15
}}</ref>

<ref name="Buta2007">{{Citation
 | first1    = Ronald J.
 | last1     = Buta
 | first2    = Harold G.
 | last2     = Corwin
 | first3    = Stephen C.
 | last3     = Odewahn
 | display-authors = 1
 | title     = Atlas of Galaxies
 | publisher = [[Cambridge University Press]]
 | pages      = 13–17
 | year      = 2007
 | isbn      = 978-0521820486
 | url       = https://books.google.com/books?id=g-P7dCbB5MEC&pg=PA16
 | postscript= .
}}</ref>

<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="Crook2007">{{Citation
 | last1 = Crook      | first1 = Aidan C.
 | last2 = Huchra     | first2 = John P.
 | last3 = Martimbeau | first3 = Nathalie
 | last4 = Masters    | first4 = Karen L.
 | last5 = Jarrett    | first5 = Tom
 | last6 = Macri      | first6 = Lucas M.
 | display-authors = 1
 | title   = Groups of Galaxies in the Two Micron All Sky Redshift Survey
 | journal = The Astrophysical Journal
 | volume  = 655
 | issue = 2
 | pages    = 790–813
 |date=February 2007
 | doi     = 10.1086/510201
 | bibcode = 2007ApJ...655..790C
 | arxiv   = astro-ph/0610732
 | s2cid = 11672751
 | postscript = .
}}</ref>

<ref name="Coccato2013">{{citation
 | last1 = Coccato     | first1 = L.
 | last2 = Morelli     | first2 = L.
 | last3 = Pizzella    | first3 = A.
 | last4 = Corsini     | first4 = E. M.
 | last5 = Buson       | first5 = L. M.
 | last6 = Dalla Bontà | first6 = E.
 | display-authors = 1
 | title   = Spectroscopic evidence of distinct stellar populations in the counter-rotating stellar disks of NGC 3593 and NGC 4550
 | journal = Astronomy & Astrophysics
 | volume  = 549
 | page    = A3
 |date=January 2013
 | doi     = 10.1051/0004-6361/201220460
 | bibcode = 2013A&A...549A...3C
 | arxiv   = 1210.7807
 | s2cid = 55949435
 | postscript = .
}}</ref>

<!--ref name="García-Burillo">{{citation
 | last1 = García-Burillo
 | first1 = S.
 | last2 = Sempere
 | first2 = M. J.
 | last3 = Combes
 | first3 = F.
 | last4 = Hunt
 | first4 = L. K.
 | last5 = Neri
 | first5 = R.
 | display-authors = 1
 | title   = Anatomy of the counterrotating molecular disk in the spiral NGC 3593. <sup>12</sup>CO(1-0) interferometer observations and numerical simulations
 | journal = Astronomy & Astrophysics
 | volume  = 363
 | pages    = 869–886
 | date=November 2000
 | bibcode = 2000A&A...363..869G
 | arxiv   = 1210.7807
 | postscript = .
 | doi = 10.1051/0004-6361/201220460
 }}</ref-->

<ref name=Nguyen>{{cite journal | doi=10.1093/mnras/stab3016 | title=The MBHBM⋆ Project – II. Molecular gas kinematics in the lenticular galaxy NGC 3593 reveal a supermassive black hole | year=2022 | last1=Nguyen | first1=Dieu D. | last2=Bureau | first2=Martin | last3=Thater | first3=Sabine | last4=Nyland | first4=Kristina | last5=Den Brok | first5=Mark | last6=Cappellari | first6=Michele | last7=Davis | first7=Timothy A. | last8=Greene | first8=Jenny E. | last9=Neumayer | first9=Nadine | last10=Imanishi | first10=Masatoshi | last11=Izumi | first11=Takuma | last12=Kawamuro | first12=Taiki | last13=Baba | first13=Shunsuke | last14=Nguyen | first14=Phuong M. | last15=Iguchi | first15=Satoru | last16=Tsukui | first16=Takafumi | last17=Lam | first17=T. N. | last18=Ho | first18=Than | journal=Monthly Notices of the Royal Astronomical Society | volume=509 | issue=2 | pages=2920–2939| doi-access=free | arxiv=2110.08476 }}</ref>
}}

==External links==
{{commonscat}}
* [http://hubblesite.org/newscenter/archive/releases/1999/10/image/c '''HubbleSite NewsCenter''': Pictures and description on NGC 3593]


{{Ngc40|state=collapsed}}

[[Category:Unbarred spiral galaxies]]
[[Category:Leo (constellation)]]
[[Category:NGC objects|3593]]
[[Category:Principal Galaxies Catalogue objects|34257]]
[[Category:UGC objects|06272]]
[[Category:Virgo Supercluster]]