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{{Short description|Galaxy in the constellation of Phoenix}}
{{Infobox Galaxy {{Infobox Galaxy
| image = ] | image = An explosive phoenix - Phoenix Dwarf.jpg
| image_size = 300px
| caption= Phoenix Dwarf by the ]
| caption= Phoenix Dwarf by the ]<ref>{{cite web |title=An explosive phoenix |url=https://www.eso.org/public/images/potw1838a/ |website=www.eso.org |access-date=17 September 2018}}</ref>
| name = Phoenix Dwarf Galaxy | name = Phoenix Dwarf Galaxy
| epoch = ] | epoch = ]
| type = IAm<ref name="ned">{{cite web | type = IAm<ref name="ned">{{cite web
| title=NASA/IPAC Extragalactic Database | title=NASA/IPAC Extragalactic Database
| work=Results for Phoenix Dwarf | work=Results for Phoenix Dwarf
| url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Phoenix+Dwarf#ObjNo1 | url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Phoenix+Dwarf#ObjNo1
| accessdate=2007-03-15 }}</ref> | access-date=2007-03-15 }}</ref>
| ra = {{RA|01|51|06.3}}<ref name="ned" /> | ra = {{RA|01|51|06.3}}<ref name="ned"/>
| dec = {{DEC|-44|26|41}}<ref name="ned" /> | dec = {{DEC|-44|26|41}}<ref name="ned"/>
| dist_ly = 1.44 ± 0.07 ] (440 ± 20 ])<ref name="karachentsevetal2004">{{cite journal | dist_ly = 1.44 ± 0.07 ] (440 ± 20 ])<ref name="karachentsevetal2004">{{cite journal
|author1=I. D. Karachentsev |author2=V. E. Karachentseva |author3=W. K. Hutchmeier |author4=D. I. Makarov | title=A Catalog of Neighboring Galaxies |author1=I. D. Karachentsev |author2=V. E. Karachentseva |author3=W. K. Hutchmeier |author4=D. I. Makarov | title=A Catalog of Neighboring Galaxies
| journal=Astronomical Journal | journal=Astronomical Journal
| date=2004 | date=2004
| volume=127 | volume=127
| issue=4 | issue=4
| pages=2031–2068 | pages=2031–2068
| bibcode=2004AJ....127.2031K | bibcode=2004AJ....127.2031K
| doi=10.1086/382905}}</ref><ref name="Karachentsevetal2006">{{cite journal | doi=10.1086/382905| doi-access=free
}}</ref><ref name="Karachentsevetal2006">{{cite journal
| author=Karachentsev, I. D. | author=Karachentsev, I. D.
| author2=Kashibadze, O. G. | author2=Kashibadze, O. G.
| title=Masses of the local group and of the M81 group estimated from distortions in the local velocity field | title=Masses of the local group and of the M81 group estimated from distortions in the local velocity field
| journal=Astrophysics | journal=Astrophysics
| date=2006 | date=2006
| volume=49 | volume=49
| issue=1 | issue=1
| pages=3–18 | pages=3–18
| bibcode=2006Ap.....49....3K | bibcode=2006Ap.....49....3K
| doi=10.1007/s10511-006-0002-6 }}</ref> | doi=10.1007/s10511-006-0002-6 | s2cid=120973010
}}</ref>
| z = 60 ± 30 km/]<ref name="ned" /> | z = 60 ± 30 km/]<ref name="ned"/>
| appmag_v = 13.1<ref name="ned" /> | appmag_v = 13.1<ref name="ned"/>
| size_v = 4′.9 × 4′.1<ref name="ned" /> | size_v = 4′.9 × 4′.1<ref name="ned"/>
| constellation name = ] | constellation name = ]
| notes = - | notes = -
| names = ESO 245- G 007,<ref name="ned" /> ] 6830<ref name="ned" /> | names = ESO 245- G 007,<ref name="ned"/> ] 6830<ref name="ned"/>
}} }}


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| pages = 129–131 | pages = 129–131
| date = May 1976 | date = May 1976
⚫ }}</ref><ref name="Canternaetal1977">{{Cite journal
| postscript = <!--None-->
⚫ }}</ref><ref name="Canternaetal1977">{{Cite journal
| last1 = Canterna | last1 = Canterna
| first1 = R. | first1 = R.
Line 63: Line 66:
| pages = L57–L58 | pages = L57–L58
| doi = 10.1086/182374 | doi = 10.1086/182374
⚫ }}</ref> It is currently 1.44&nbsp;] away from ]. Its name comes from the fact that it is part of the ].
| postscript = <!--None-->
⚫ }}</ref> It is currently 1.44&nbsp;] away from ]. Its name comes from the fact that it is part of the ].


== Characteristics == == Characteristics ==
The Phoenix Dwarf has an inner part of young ]s which is stretched in an east-west direction and an outer part of mainly old stars that is stretched north-south. The central region's rate of ] seems to have been relatively constant across time (Martínez-Delgado et al. 1999). In 1999, St-Germain et al. discovered a ] region of about 10<sup>5</sup> {{Solar mass|link=y}} just to the west of Phoenix. Its ] is -23&nbsp;km/s and may be physically associated with Phoenix if it is found to have a similar radial velocity.<ref name="Bergh2000">{{ Cite journal The Phoenix Dwarf has an inner part of young ]s which is stretched in an east-west direction and an outer part of mainly old stars that is stretched north-south. The central region's rate of ] seems to have been relatively constant across time (Martínez-Delgado et al. 1999). In 1999, St-Germain et al. discovered a ] of about 10<sup>5</sup> {{Solar mass|link=y}} just to the west of Phoenix. Its ] is −23&nbsp;km/s and may be physically associated with Phoenix if it is found to have a similar radial velocity.<ref name="Bergh2000">{{Cite journal
| last1 = van den Bergh | last1 = van den Bergh
| first1 = Sidney | first1 = Sidney
| authorlink1 = Sidney van den Bergh | author-link1 = Sidney van den Bergh
| title = Updated Information on the Local Group | title = Updated Information on the Local Group
| date = April 2000 | date = April 2000
Line 79: Line 81:
| pages = 529–536 | pages = 529–536
| doi = 10.1086/316548 | doi = 10.1086/316548
|arxiv = astro-ph/0001040 | s2cid = 1805423
| postscript = <!--None-->
|arxiv = astro-ph/0001040 }}</ref> }}</ref>


== References == == References ==
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== External links == == External links ==
* {{commonscat-inline}}
* {{WikiSky|name=The Phoenix Dwarf}} * {{WikiSky|name=The Phoenix Dwarf}}
⚫ {{Sky|01|51|06.3|-|44|26|41|1440000}}


{{Milky Way}}


⚫ {{Sky|01|51|06.3|-|44|26|41|1440000}}

{{Milky Way}}{{Phoenix (constellation)}}
] ]
] ]

Latest revision as of 00:40, 16 June 2023

Galaxy in the constellation of Phoenix
Phoenix Dwarf Galaxy
Phoenix Dwarf by the Very Large Telescope
Observation data (J2000 epoch)
ConstellationPhoenix
Right ascension01 51 06.3
Declination−44° 26′ 41″
Redshift60 ± 30 km/s
Distance1.44 ± 0.07 Mly (440 ± 20 kpc)
Apparent magnitude (V)13.1
Characteristics
TypeIAm
Apparent size (V)4′.9 × 4′.1
Notable features-
Other designations
ESO 245- G 007, PGC 6830

The Phoenix Dwarf is a dwarf irregular galaxy discovered in 1976 by Hans-Emil Schuster and Richard Martin West and mistaken for a globular cluster. It is currently 1.44 Mly away from Earth. Its name comes from the fact that it is part of the Phoenix constellation.

Characteristics

The Phoenix Dwarf has an inner part of young stars which is stretched in an east-west direction and an outer part of mainly old stars that is stretched north-south. The central region's rate of star formation seems to have been relatively constant across time (Martínez-Delgado et al. 1999). In 1999, St-Germain et al. discovered a H I region of about 10 M☉ just to the west of Phoenix. Its radial velocity is −23 km/s and may be physically associated with Phoenix if it is found to have a similar radial velocity.

References

  1. "An explosive phoenix". www.eso.org. Retrieved 17 September 2018.
  2. ^ "NASA/IPAC Extragalactic Database". Results for Phoenix Dwarf. Retrieved 2007-03-15.
  3. I. D. Karachentsev; V. E. Karachentseva; W. K. Hutchmeier; D. I. Makarov (2004). "A Catalog of Neighboring Galaxies". Astronomical Journal. 127 (4): 2031–2068. Bibcode:2004AJ....127.2031K. doi:10.1086/382905.
  4. Karachentsev, I. D.; Kashibadze, O. G. (2006). "Masses of the local group and of the M81 group estimated from distortions in the local velocity field". Astrophysics. 49 (1): 3–18. Bibcode:2006Ap.....49....3K. doi:10.1007/s10511-006-0002-6. S2CID 120973010.
  5. Schuster, H.-E.; West, R. M. (May 1976). "A very distant globular cluster?". Astronomy & Astrophysics. 49: 129–131. Bibcode:1976A&A....49..129S.
  6. Canterna, R.; Flower, P. J. (March 1977). "A new dwarf irregular galaxy in the constellation Phoenix". Astrophysical Journal. 212 (Letters): L57–L58. Bibcode:1977ApJ...212L..57C. doi:10.1086/182374.
  7. van den Bergh, Sidney (April 2000). "Updated Information on the Local Group". The Publications of the Astronomical Society of the Pacific. 112 (770): 529–536. arXiv:astro-ph/0001040. Bibcode:2000PASP..112..529V. doi:10.1086/316548. S2CID 1805423.

External links



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