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B-type giant star in the constellation Pyxis
Alpha Pyxidis ,
Latinised from α Pyxidis , is a
giant star in the
constellation
Pyxis . It has a
stellar classification of B1.5III and is a
Beta Cephei variable . This star has more than ten times the
mass of the Sun and is more than six times the
Sun's radius . The surface temperature is K luminous as the Sun .
[3]
[4]
[8] Stars such as this with more than 10 solar masses are expected to end their life by exploding as a
supernova .
[11]
Naming In
Chinese , 天狗 Tiān Gǒu
Celestial Dog , refers to an
asterism consisting of α Pyxidis,
e Velorum ,
f Velorum ,
β Pyxidis ,
γ Pyxidis and
δ Pyxidis . Consequently, α Pyxidis itself is known as 天狗五 Tiān Gǒu wǔ the Fifth Star of Celestial Dog ).
[12]
References
^
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arXiv :
0708.1752 ,
Bibcode :
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doi :
10.1051/0004-6361:20078357 ,
S2CID
18759600 ^
a b c Fernie, J. D. (May 1983).
"New UBVRI photometry for 900 supergiants" . Astrophysical Journal Supplement Series . 52 : 7–22.
Bibcode :
1983ApJS...52....7F .
doi :
10.1086/190856 . ^
a b Hiltner, W. A.; Garrison, R. F.; Schild, R. E. (July 1969).
"MK Spectral Types for Bright Southern OB Stars" . Astrophysical Journal . 157 : 313.
Bibcode :
1969ApJ...157..313H .
doi :
10.1086/150069 . ^
a b c d Hubrig, S.; et al. (January 2009). "New magnetic field measurements of beta Cephei stars and Slowly Pulsating B stars". Astronomische Nachrichten . 330 (4): 317.
arXiv :
0902.1314 .
Bibcode :
2009AN....330..317H .
doi :
10.1002/asna.200811187 .
S2CID
17497112 .
^ Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication .
Carnegie Institute of Washington D.C.
Bibcode :
1953GCRV..C......0W .
^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters , 38 (5): 331,
arXiv :
1108.4971 ,
Bibcode :
2012AstL...38..331A ,
doi :
10.1134/S1063773712050015 ,
S2CID
119257644 .
^ Hubrig, S.; Ilyin, I.; Schöller, M.; Briquet, M.; Morel, T.; De Cat, P. (January 2011),
"First Magnetic Field Models for Recently Discovered Magnetic β Cephei and Slowly Pulsating B Stars" (PDF) , The Astrophysical Journal Letters , 726 (1): L5,
arXiv :
1012.3019 ,
Bibcode :
2011ApJ...726L...5H ,
doi :
10.1088/2041-8205/726/1/L5 ,
hdl :
2268/81132 ,
S2CID
119195567 ^
a b c d Kilian, J. (February 1994). "Chemical abundances in early B-type stars. 5: Metal abundances and LTE/NLTE comparison". Astronomy and Astrophysics . 282 (3): 867–873.
Bibcode :
1994A&A...282..867K .
^ Nieva, M. F.; Przybilla, N. (April 2008). "Carbon abundances of early B-type stars in the solar vicinity. Non-LTE line-formation for C II/III/IV and self-consistent atmospheric parameters". Astronomy and Astrophysics . 481 (1): 199–216.
arXiv :
0711.3783 .
Bibcode :
2008A&A...481..199N .
doi :
10.1051/0004-6361:20078203 .
S2CID
10281324 .
^
"alf Pyx" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved 2021-07-29 . {{
cite web }}: CS1 maint: postscript (
link )
^ Reed, B. Cameron (June 28, 2005). "New Estimates of the Solar-Neighborhood Massive-Stars Birthrate and the Galactic Supernova Rate". The Astronomical Journal . 130 (4): 1652–1657.
arXiv :
astro-ph/0506708 .
Bibcode :
2005AJ....130.1652R .
doi :
10.1086/444474 .
S2CID
119515135 .
^ (in Chinese)
AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 17 日
External links
