AFGL 2591

AFGL 2591
Reflection nebula
molecular cloud
Observation data: J2000 epoch
Right ascension	20h 29m 24.867s
Declination	+40° 11′ 19.41″
Distance	3330±110 pc
Apparent diameter	0.51'
Constellation	Cygnus
Physical characteristics
Radius	est. 0.87–2.0 pc
Notable features	high-mass star-forming region
Designations	AFGL 2591; IRAS 20275+4001; RAFGL 2591
	See also: Lists of nebulae

AFGL 2591 is a star forming region in the constellation Cygnus. Its dense cloud of gas and dust make its interior invisible to optical telescopes. Images in the infrared show a bright young stellar object, with an associated reflection nebula seen as a glowing cone projecting from the young star. A cluster of stars is forming within the molecular cloud, but most of the infrared radiation is coming from this star, AFGL 2591-VLA3.^[3]

Initially AFGL 2591 was thought to be a single young, massive star expelling clouds of gas and dust in multiple events. It was estimated to be about 10 times the mass of the sun and at a distance of only 1,000 parsecs (3,300 light-years).^[4]

References[]

^ ^a ^b ^c ^d "Basic data: RAFGL 2591 — Young Stellar Object". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 28 April 2014.
^ ^a ^b Johnston, K. G.; Shepherd, D. S.; Robitaille, T. P.; Wood, K. (2013). "The standard model of low-mass star formation applied to massive stars: a multi-wavelength picture of AFGL 2591". Astronomy & Astrophysics. 551: A43, 1–23. arXiv:1212.1719. Bibcode:2013A&A...551A..43J. doi:10.1051/0004-6361/201219657.
^ ^a ^b Sanna, A.; Reid, M. J.; Carrasco-González, C.; et al. (2012). "Clustered star formation and outflows in AFGL 2591". The Astrophysical Journal. 745 (2): 191–200. arXiv:1111.0843. Bibcode:2012ApJ...745..191S. doi:10.1088/0004-637X/745/2/191.
^ "Gemini Spies Strong Stellar Gusts in Nearby Massive Star". Gemini Observatory. 23 July 2001. Retrieved 28 April 2014.

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[SIMBAD-1] "Basic data: RAFGL 2591 — Young Stellar Object". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 28 April 2014.

[JohnstonShepherd2013-2] Johnston, K. G.; Shepherd, D. S.; Robitaille, T. P.; Wood, K. (2013). "The standard model of low-mass star formation applied to massive stars: a multi-wavelength picture of AFGL 2591". Astronomy & Astrophysics. 551: A43, 1–23. arXiv:1212.1719. Bibcode:2013A&A...551A..43J. doi:10.1051/0004-6361/201219657.

[SannaReid2012-3] Sanna, A.; Reid, M. J.; Carrasco-González, C.; et al. (2012). "Clustered star formation and outflows in AFGL 2591". The Astrophysical Journal. 745 (2): 191–200. arXiv:1111.0843. Bibcode:2012ApJ...745..191S. doi:10.1088/0004-637X/745/2/191.

[4] "Gemini Spies Strong Stellar Gusts in Nearby Massive Star". Gemini Observatory. 23 July 2001. Retrieved 28 April 2014.

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