| 词条 | Messier 110 | |
| 释义 |
| name = Messier 110[1] | image = NGC 0205 SDSS.jpg | caption = SDSS image of Messier 110/NGC 205 | epoch = J2000 | constellation name=Andromeda[2] | ra = {{RA|00|40|22.05446}}[3] | dec = {{DEC|+41|41|07.4963}}[3] | size_v = {{nowrap|21′.9 × 11′.0}}[5] | appmag_v = 8.92[5] | type = E5 pec[7] | h_radial_v = {{Val|−241|3}}[5] | z = {{Val|−0.000804|0.000010}}[5] | gal_v = {{Val|-62|8}}[5] | g_dist = {{Val|2.69|0.09}} | names = IRAS 00376+4124, LEDA 2429, M110, MCG +07-02-014, NGC 0205, PGC 002429 }}Messier 110 or M110, also known as NGC 205, is a dwarf elliptical galaxy that is a satellite of the Andromeda Galaxy.[12] Although Charles Messier never included the galaxy in his list, it was depicted by him, together with M32, on a drawing of the Andromeda galaxy; a label on the drawing indicates that Messier first observed NGC 205 on August 10, 1773.[13] The galaxy was independently discovered by Caroline Herschel on August 27, 1783; her brother William Herschel described her discovery in 1785.[13] The suggestion to assign the galaxy a Messier number was made by Kenneth Glyn Jones in 1967.[15] This galaxy has a morphological classification of pec dE5, indicating a dwarf elliptical galaxy with a flattening of 50%. M110 is designated peculiar because there are patches of dust and young blue stars located near the center.[16] This is unusual for dwarf elliptical galaxies in general,[12] and the reason for this peculiarity is unclear.[16] Unlike M32, NGC 205 does not (as of 2005) show evidence for a supermassive black hole at its center.[19] The interstellar dust in M110 has a mass of {{Val|1.1|–|1.8|e=4|ul=solar mass}} with a temperature of {{Val|18|–|22|u=K}}, and the interstellar gas has {{Val|4|–|7|e=6|u=solar mass}}. The inner regions of M110 show a deficiency in the interstellar medium (IM) materials, which most likely were ejected by supernova explosions. Tidal interactions with M31 may have stripped away a significant fraction of the expelled gas and dust, leaving the galaxy as a whole deficient in its IM density.[20] A few novae have been detected in this galaxy, including one discovered in 1999 by Johnson and Modjaz,[21] and another detected in 2002, by Nakano and Sumoto. The latter, designated EQ J004015.8+414420, had also been captured in images taken by the Sloan Digital Sky Survey (SDSS) in October, 2002.[22] About half of the Andromeda's satellite galaxies are orbiting the host galaxy along a highly flattened plane, with 14 out of 16 following the same sense of rotation. One theory proposes that these objects once belonged to a subhalo surrounding NGC 205, then the group was broken up by tidal forces during a close encounter with Andromeda.[23] GallerySee also
References1. ^1 2 {{Cite Gaia DR2}} [1][2][3][4][5][6][7][8][9][10][11][12][13][14]2. ^1 {{cite journal | title=Herschel and JCMT observations of the early-type dwarf galaxy NGC 205 | last1=De Looze | first1=I. | last2=Baes | first2=M. | last3=Parkin | first3=T. J. | last4=Wilson | first4=C. D. | last5=Bendo | first5=G. J. | last6=Boquien | first6=M. | last7=Boselli | first7=A. | last8=Cooray | first8=A. | last9=Cormier | first9=D. | last10=Fritz | first10=J. | last11=Galliano | first11=F. | last12=Gear | first12=W. | last13=Gentile | first13=G. | last14=Lebouteiller | first14=V. | last15=Madden | first15=S. C. | last16=Roussel | first16=H. | last17=Sauvage | first17=M. | last18=Smith | first18=M. W. L. | last19=Spinoglio | first19=L. | last20=Verstappen | first20=J. | last21=Young | first21=L. | display-authors=1 | journal=Monthly Notices of the Royal Astronomical Society | volume=423 | issue=3 | pages=2359–2373 | date=July 2012 | doi=10.1111/j.1365-2966.2012.21044.x | bibcode=2012MNRAS.423.2359D | arxiv=1204.1264 }} 3. ^1 {{cite journal | title=The potential role of NGC 205 in generating Andromeda's vast thin corotating plane of satellite galaxies | last1=Angus | first1=Garry W. | last2=Coppin | first2=Paul | last3=Gentile | first3=Gianfranco | last4=Diaferio | first4=Antonaldo | journal=Monthly Notices of the Royal Astronomical Society | volume=462 | issue=3 | pages=3221–3242 | date=November 2016 | doi=10.1093/mnras/stw1822 | bibcode=2016MNRAS.462.3221A | arxiv=1608.03763 }} 4. ^1 2 {{citation | title=Planetary Nebulae in Local-Group Galaxies. I. Identifications in NGC 185, NGC 205, and NGC 221 | last1=Ford | first1=Holland C. | last2=Jenner | first2=David C. | last3=Epps | first3=Harland W. | display-authors=1 | journal=Astrophysical Journal | volume=183 | page=L73 | date=July 1973 | doi=10.1086/181255 | bibcode=1973ApJ...183L..73F }} 5. ^1 {{cite journal | title=An STIS Atlas of Ca II Triplet Absorption Line Kinematics in Galactic Nuclei | last1=Batcheldor | first1=D. | last2=Axon | first2=D. | last3=Valluri | first3=M. | last4=Mandalou | first4=J. | last5=Merritt | first5=D. | display-authors=1 | journal=The Astronomical Journal | volume=146 | issue=3 | id=67 | pages=10 | date=September 2013 | doi=10.1088/0004-6256/146/3/67 | bibcode=2013AJ....146...67B | arxiv=1308.1983 }} 6. ^1 {{cite journal | display-authors=1 | first1=A. W. | last1=McConnachie | first2=M. J. | last2=Irwin | first3=A. M. N. | last3=Ferguson | first4=R. A. | last4=Ibata | first5=G. F. | last5=Lewis | first6=N. | last6=Tanvir | title=Distances and metallicities for 17 Local Group galaxies | journal=Monthly Notices of the Royal Astronomical Society | volume=356 | issue=4 | pages=979–997 | date=2005 | bibcode=2005MNRAS.356..979M | arxiv = astro-ph/0410489 | doi=10.1111/j.1365-2966.2004.08514.x }} 7. ^1 {{cite book | first1=J. L. E. | last1=Dreyer | first2=R. W. | last2=Sinnott | date=1988 | editor1-first=R. W. | editor1-last=Sinnott | title=NGC 2000.0: The Complete New General Catalogue and Index Catalogues of Nebulae and Star Clusters by J. L. E. Dreyer | publisher=Sky Publishing Corporation and Cambridge University Press | isbn=978-0-933346-51-2 }} 8. ^1 2 3 4 5 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 205 | url=http://nedwww.ipac.caltech.edu/ | accessdate=2006-11-29 }} 9. ^1 2 {{cite book | first1=A. | last1=Sandage | first2=J. | last2=Bedke | date=1994 | title=Carnegie Atlas of Galaxies | publisher=Carnegie Institution of Washington | isbn=978-0-87279-667-6 }} 10. ^1 2 {{cite book | first1=K. G. | last1=Jones | date=1991 | edition=2nd | title=Messier's Nebulae and Star Clusters | publisher=Cambridge University Press | isbn=978-0-521-37079-0 }} 11. ^1 {{cite journal | first1=K. G. | last1=Jones | title=Some New Notes on Messier's Catalogue | journal=Sky & Telescope | volume=33 | pages=156–158 | date=1967 | bibcode=1967S&T....33..156J }} 12. ^1 {{cite journal | last=van den Bergh |first=S. | title=Updated Information on the Local Group | journal=Publications of the Astronomical Society of the Pacific | volume=112 | issue=770 | pages=529–536 | date=2000 | doi=10.1086/316548 | arxiv=astro-ph/0001040 | bibcode=2000PASP..112..529V }} 13. ^1 {{cite web | url=http://forum.astrofili.org/viewtopic.php?f=5&t=68465&start=20 | title=Forum di Astronomia Amatoriale Italiano }} 14. ^1 {{cite journal | last1=Valluri | first1=M. | last2=Ferrarese | first2=L. | last3=Merritt | first3=D. | last4=Joseph | first4=C.J. | title=The Low End of the Supermassive Black Hole Mass Function: Constraining the Mass of a Nuclear Black Hole in NGC 205 via Stellar Kinematics | display-authors=1 | journal=Astrophysical Journal | volume=628 | issue=1 | pages=137–152 | date=2005 | bibcode=2005ApJ...628..137V | doi=10.1086/430752 | arxiv=astro-ph/0502493 }} }} External links
12 : Dwarf elliptical galaxies|Peculiar galaxies|Local Group|Andromeda Subgroup|Andromeda (constellation)|Messier objects|NGC objects|UGC objects|Principal Galaxies Catalogue objects|LEDA objects|Astronomical objects discovered in 1773|Discoveries by Caroline Herschel |
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