AE Andromedae

AE Andromedae

A visual band light curve for AE Andromedae, made with the Palomar Transient Factory instrument[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 43m 02.52s[2]
Declination +41° 49′ 12.2″[2]
Apparent magnitude (V) 17.0-17.9[3]
Characteristics
Spectral type LBV
U−B color index ~ −0.9[3]
B−V color index ~ +0.1[3]
Variable type LBV
Astrometry
Radial velocity (Rv)-193[4] km/s
Distance~2.5 million ly
(~780 thousand pc)
Absolute magnitude (MV)−7.0 to −10.2[3]
Details
Mass50-120[5] M
Radius55[6] R
Luminosity450,000-700,000[6] L
Temperature20,000[7] K
Other designations
AE Andromedae, AE And, HV 4476, 2MASS 00430251+4149121
Database references
SIMBADdata

AE Andromedae (AE And) is a luminous blue variable (LBV), a type of variable star. The star is one of the most luminous variables in M31, the Andromeda Galaxy.

  1. ^ Soraisam, Monika D.; Bildsten, Lars; Drout, Maria R.; Prince, Thomas A.; Kupfer, Thomas; Masci, Frank; Laher, Russ R.; Kulkarni, Shrinivas R. (April 2020). "Variability of Massive Stars in M31 from the Palomar Transient Factory". The Astrophysical Journal. 893 (1): 11. arXiv:1908.02439. Bibcode:2020ApJ...893...11S. doi:10.3847/1538-4357/ab7b7b. S2CID 199472825.
  2. ^ a b Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
  3. ^ a b c d Humphreys, R. M.; Blaha, C.; d'Odorico, S.; Gull, T. R.; Benvenuti, P. (1984). "IUE and ground-based observations of the Hubble-Sandage variables in M31 and M33". The Astrophysical Journal. 278: 124. Bibcode:1984ApJ...278..124H. doi:10.1086/161774.
  4. ^ Humphreys, R. M. (1975). "The spectra of AE Andromedae and the Hubble-Sandage variables in M31 and M33". Astrophysical Journal. 200: 426. Bibcode:1975ApJ...200..426H. doi:10.1086/153806.
  5. ^ Burggraf, B.; Weis, K.; Bomans, D. J. (2006). "LBVs in M33: Their Environments and Ages". Stellar Evolution at Low Metallicity: Mass Loss. 353: 245. Bibcode:2006ASPC..353..245B.
  6. ^ a b Szeifert, T.; Humphreys, R. M.; Davidson, K.; Jones, T. J.; Stahl, O.; Wolf, B.; Zickgraf, F.-J. (1996). "HST and groundbased observations of the 'Hubble-Sandage' variables in M 31 and M 33". Astronomy and Astrophysics. 314: 131. Bibcode:1996A&A...314..131S.
  7. ^ Humphreys, Roberta M.; Weis, Kerstin; Davidson, Kris; Bomans, D. J.; Burggraf, Birgitta (2014). "Luminous and Variable Stars in M31 and M33. II. Luminous Blue Variables, Candidate LBVs, Fe II Emission Line Stars, and Other Supergiants". The Astrophysical Journal. 790 (1): 48. arXiv:1407.2259. Bibcode:2014ApJ...790...48H. doi:10.1088/0004-637X/790/1/48. S2CID 119177378.