Revision as of 19:03, 2 December 2024 editPhantomdj (talk | contribs)Extended confirmed users2,426 editsm updated SN info← Previous edit | Latest revision as of 17:59, 6 December 2024 edit undoPhantomdj (talk | contribs)Extended confirmed users2,426 editsm →Supernovae: updated name for Carlton Pennypacker | ||
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}}</ref><ref>{{cite journal | doi=10.1086/128660 | doi-access=free | title=The 1967 Palomar Supernova Search | date=1968 | last1=Zwicky | first1=F. | journal=Publications of the Astronomical Society of the Pacific | volume=80 | page=462 | bibcode=1968PASP...80..462Z}}</ref><ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1967H | url=https://www.wis-tns.org/object/1967H | publisher = ] | access-date=2 December 2024}}</ref><ref name=Fairall1975/> | }}</ref><ref>{{cite journal | doi=10.1086/128660 | doi-access=free | title=The 1967 Palomar Supernova Search | date=1968 | last1=Zwicky | first1=F. | journal=Publications of the Astronomical Society of the Pacific | volume=80 | page=462 | bibcode=1968PASP...80..462Z}}</ref><ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1967H | url=https://www.wis-tns.org/object/1967H | publisher = ] | access-date=2 December 2024}}</ref><ref name=Fairall1975/> | ||
* SN 1972Q (type unknown, mag. 15.8) was discovered by Leonida Rosino on 14 December 1972.<ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1972Q | url=https://www.wis-tns.org/object/1972Q | publisher = ] | access-date=2 December 2024}}</ref> | * SN 1972Q (type unknown, mag. 15.8) was discovered by Leonida Rosino on 14 December 1972.<ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1972Q | url=https://www.wis-tns.org/object/1972Q | publisher = ] | access-date=2 December 2024}}</ref> | ||
* SN 1986I (type II, mag. 14) was discovered by |
* SN 1986I (type II, mag. 14) was discovered by ] et al. on 17 May 1986.<ref>{{cite journal | bibcode=1986IAUC.4219....1P| title=Supernovae| last1=Pennypacker| first1=C.| last2=Burns| first2=S.| last3=Crawford| first3=F.| last4=Friedman| first4=P.| last5=Muller| first5=J.| last6=Perlmutter| first6=S.| last7=Smith| first7=C.| last8=Treffers| first8=R.| last9=Williamson| first9=A.| last10=Junkkarinen| first10=V.| last11=Filippenko| first11=A. V.| last12=McCarthy| first12=P. J.| last13=Rosino| first13=L.| last14=Iijima| first14=T.| last15=Wilson| first15=I.| last16=Horine| first16=E.| journal=International Astronomical Union Circular| date=1986| issue=4219| page=1}}</ref><ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1986I | url=https://www.wis-tns.org/object/1986I | publisher = ] | access-date=2 December 2024}}</ref><ref name=Penhallow1986/> | ||
* SN 2014L (], mag. 17.2) was discovered by the THU-NAOC Transient Survey (TNTS) on 26 January 2014.<ref>{{cite journal | bibcode=2014CBET.3795....1Z| title=Supernova 2014L in M99 = PSN J12184868+1424435| last1=Zhang| first1=Tianmeng| last2=Wang| first2=Xiaofeng| last3=Mo| first3=Jun| last4=Chen| first4=Juncheng| journal=Central Bureau Electronic Telegrams| date=2014| volume=3795| page=1}}</ref><ref>{{cite web | * SN 2014L (], mag. 17.2) was discovered by the THU-NAOC Transient Survey (TNTS) on 26 January 2014.<ref>{{cite journal | bibcode=2014CBET.3795....1Z| title=Supernova 2014L in M99 = PSN J12184868+1424435| last1=Zhang| first1=Tianmeng| last2=Wang| first2=Xiaofeng| last3=Mo| first3=Jun| last4=Chen| first4=Juncheng| journal=Central Bureau Electronic Telegrams| date=2014| volume=3795| page=1}}</ref><ref>{{cite web | ||
| url = https://www.rochesterastronomy.org/sn2014/sn2014l.html | | url = https://www.rochesterastronomy.org/sn2014/sn2014l.html |
Latest revision as of 17:59, 6 December 2024
Spiral galaxy in the constellation Coma BerenicesMessier 99 | |
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Galaxy Messier 99, Schulman Telescope | |
Observation data (J2000 epoch) | |
Constellation | Coma Berenices |
Right ascension | 12 18 49.625 |
Declination | +14° 24′ 59.36″ |
Redshift | 0.008029 |
Heliocentric radial velocity | 2,404 km/s |
Distance | 45.2 Mly (13.87 Mpc) |
Group or cluster | Virgo Cluster |
Apparent magnitude (V) | 9.9 |
Characteristics | |
Type | SA(s)c |
Apparent size (V) | 5.4′ × 4.7′ |
Other designations | |
Coma Pinwheel Galaxy, Virgo Cluster Pinwheel, M99, NGC 4254, PGC 39578, UGC 7345 |
Messier 99 or M99, also known as NGC 4254 or St. Catherine's Wheel, is a grand design spiral galaxy in the northern constellation Coma Berenices approximately 15,000,000 parsecs (49,000,000 light-years) from the Milky Way. It was discovered by Pierre Méchain on 17 March 1781. The discovery was then reported to Charles Messier, who included the object in the Messier Catalogue of comet-like objects. It was one of the first galaxies in which a spiral pattern was seen. This pattern was first identified by Lord Rosse in the spring of 1846.
This galaxy has a morphological classification of SA(s)c, indicating a pure spiral shape with loosely wound arms. It has a peculiar shape with one normal looking arm and an extended arm that is less tightly wound. The galaxy is inclined by 42° to the line-of-sight with a major axis position angle of 68°.
A bridge of neutral hydrogen gas links NGC 4254 with VIRGOHI21, an HI region and a possible dark galaxy. The gravity from the latter may have distorted M99 and drawn out the gas bridge, as the two galaxy-sized objects may have had a close encounter before parting greatly. However, VIRGOHI21 may instead be tidal debris from an interaction with the lenticular galaxy NGC 4262 some 280 million years ago. It is expected that the drawn out arm will relax to match the normal arm once the encounter is over.
While not classified as a starburst galaxy, M99 has a star formation activity three times larger than other galaxies of similar Hubble type that may have been triggered by the encounter. M99 is likely entering the Virgo Cluster for the first time bound to the periphery of the cluster at a projected separation of 3.7°, or around one megaparsec, from the cluster center at Messier 87. The galaxy is undergoing ram-pressure stripping of much of its interstellar medium as it moves through the intracluster medium.
Supernovae
Four supernovae have been observed in M99:
- SN 1967H (type II, mag. 14.0) was discovered by Fritz Zwicky on 1 July 1967.
- SN 1972Q (type unknown, mag. 15.8) was discovered by Leonida Rosino on 14 December 1972.
- SN 1986I (type II, mag. 14) was discovered by Carlton Pennypacker et al. on 17 May 1986.
- SN 2014L (type Ic, mag. 17.2) was discovered by the THU-NAOC Transient Survey (TNTS) on 26 January 2014.
See also
- List of Messier objects
- Messier 83 - a similar face-on spiral galaxy
- Pinwheel Galaxy - a similar face-on spiral galaxy
References
- "The Schulman Telescope". www.as.arizona.edu. Retrieved 2022-02-20.
- Dreyer, J. L. E. (1988). Sinnott, R. W. (ed.). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters. Sky Publishing Corporation/Cambridge University Press. ISBN 978-0-933346-51-2.
- ^ Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
- ^ "NASA/IPAC Extragalactic Database". Results for NGC 4254. Retrieved 2006-11-25.
- ^ Tully, R. Brent; et al. (August 2016), "Cosmicflows-3", The Astronomical Journal, 152 (2): 21, arXiv:1605.01765, Bibcode:2016AJ....152...50T, doi:10.3847/0004-6256/152/2/50, S2CID 250737862, 50.
- ^ Vollmer, B.; Huchtmeier, W.; van Driel, W. (September 2005). "NGC 4254: a spiral galaxy entering the Virgo cluster". Astronomy and Astrophysics. 439 (3): 921–933. arXiv:astro-ph/0505021. Bibcode:2005A&A...439..921V. doi:10.1051/0004-6361:20041350. S2CID 17414818.
- "Messier 99". SEDS Messier Catalog. Retrieved 30 April 2022.
- ^ de Vaucouleurs, G.; et al. (1991), Third reference catalogue of bright galaxies, 9, New York: Springer-Verlag.
- "M 99". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-12-18.
- Jones, K. G. (1991). Messier's Nebulae and Star Clusters (2nd ed.). Cambridge University Press. ISBN 978-0-521-37079-0.
- Rosse, The Earl Of (1850). "Observations on the Nebulae". Philosophical Transactions of the Royal Society of London, Series I. 140: 499–514.
- Chyży, K. T.; Ehle, M.; Beck, R. (September 2007). "Magnetic fields and gas in the cluster-influenced spiral galaxy NGC 4254. I. Radio and X-rays observations". Astronomy and Astrophysics. 474 (2): 415–429. arXiv:0708.1533. Bibcode:2007A&A...474..415C. doi:10.1051/0004-6361:20077497. S2CID 16273521.
- Gingerich, Owen (5 July 1967). "Circular No. 2021". Central Bureau for Astronomical Telegrams. Smithsonian Astrophysical Observatory. Retrieved 2 December 2024.
- Zwicky, F. (1968). "The 1967 Palomar Supernova Search". Publications of the Astronomical Society of the Pacific. 80: 462. Bibcode:1968PASP...80..462Z. doi:10.1086/128660.
- "SN 1967H". Transient Name Server. IAU. Retrieved 2 December 2024.
- Fairall, A. P. (August 1975), "The spectrum of the type II supernova 1967h in NGC 4254", Monthly Notes of the Astronomical Society of South Africa, 34 (7–8): 94–98
- "SN 1972Q". Transient Name Server. IAU. Retrieved 2 December 2024.
- Pennypacker, C.; Burns, S.; Crawford, F.; Friedman, P.; Muller, J.; Perlmutter, S.; Smith, C.; Treffers, R.; Williamson, A.; Junkkarinen, V.; Filippenko, A. V.; McCarthy, P. J.; Rosino, L.; Iijima, T.; Wilson, I.; Horine, E. (1986). "Supernovae". International Astronomical Union Circular (4219): 1. Bibcode:1986IAUC.4219....1P.
- "SN 1986I". Transient Name Server. IAU. Retrieved 2 December 2024.
- Penhallow, W. S.; et al. (June 1986), Marsden, B. G. (ed.), "Supernova 1986I in NGC 4254", IAU Circular, 4225 (2): 2, Bibcode:1986IAUC.4225....2P
- Zhang, Tianmeng; Wang, Xiaofeng; Mo, Jun; Chen, Juncheng (2014). "Supernova 2014L in M99 = PSN J12184868+1424435". Central Bureau Electronic Telegrams. 3795: 1. Bibcode:2014CBET.3795....1Z.
- Bishop, David. "Supernovae 2014L in M99". Rochester Astronomy. Retrieved 2 December 2024.
- "SN 2014L". Transient Name Server. IAU. Retrieved 2 December 2024.
External links
- SEDS: Spiral Galaxy M99
- UniverseToday: Dark Matter Galaxy?
- PPARC: New evidence for a Dark Matter Galaxy
- Kasliwal, Mansi M.; et al. (2011). "PTF 10fqs: A LUMINOUS RED NOVA IN THE SPIRAL GALAXY MESSIER 99". The Astrophysical Journal. 730 (2): 134. arXiv:1005.1455. Bibcode:2011ApJ...730..134K. doi:10.1088/0004-637X/730/2/134. S2CID 18454146.
- Messier 99 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Messier objects | ||
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List |
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See also | ||