Star Formation Region Avedisova 252

Catalog name: 16.80+0.75

Prominent object names: Sh 2-49, RCW 165, Gum 83, M 16 [glossary]

Westerhout radio sources: W 37 (Radio) [16]

IRAS infrared sources (4): IRAS 18160-1400 (IR) [0], IRAS 18152-1346 = [IRW2007] MYSO (YSO) [9], IRAS 18156-1343 (IR) [6], IRAS 18159-1346 = SFO 30 (Cloud) [9]

Masers: 4 water

Other component designations: Gum 83 = SH 2-49 (HII) [28], M 16 (OpCl) [528], NGC 6611 = M 16 (OpCl) [528], RAFGL 2117, RAFGL 2119, RCW 165 (HII) [3], SH 2-49 (HII) [28]

Distance estimates for objects in this region

Object PositionSize (arcmin) Source Note Distance(s)
Sh 2-49 16.8+0.7551.76 1993AJ....106.1906H I 1995
SYCSW 168F 17.42+0.606.0x3.0 1987ApJS...63..821S V 2400, 13900
SYCSW 168 17.00+0.4166.0x105.0 1987ApJS...63..821S V 2400, 13900
SYCSW 168E 16.92+0.696.0x6.0 1987ApJS...63..821S V 2400, 13900

For more information on distance estimates see Avedisova distances.

Detailed component listing with references (27 components)

Main objectO M 16,S 49,Gu m 83 [1970A&A.....6..349G], O RCW 165,Eagl e nebula [1973A&A....25..337G]
16.99 +00.79O NGC 6611 cluster [87065]
17.04 +00.60M CO cloud [1987ApJS...63..821S], M CO E [1987ApJS...63..821S]
16.81 +00.70R W 37 [1965ApJ...142..135T], R [1970AuJPA..14..133S], R [1965ApJ...142..135T], R [1960PASP...72..331W], R [1970A&AS....1..319A], R [1967PASJ...19...88A], R [1970A&A.....4..357R], R [1974AJ.....79..786Z], R [2000AJ....119.2801L], R [1979AJ.....84...77H], R [1970ApJ...160...43F], R (C441alpha) [1995ApJ...454..125E]
17.00 +00.90IR [1984ApJ...283..566C], IR [1984ApJ...285...74H], IR [1980ApJ...239L.101N], IR [1974A&A....33..471O], IR [CII] peak [1998ApJS..115..259N], M OH-A [1979A&AS...37....1T], M OH-A [1993A&AS...98..589W], M CO [1981ApJ...248..992M], M CO [1982ApJS...49..183B]
16.800+00.690IR 18160-1400 [1988IRASP.C......0J]
16.85 +00.70IR RAFGL 2119 [1983AFGL..161....0P]
16.88 +00.77R 2 [1970ApJ...160...43F], R 2 [1979AJ.....84...77H], M CO [1974ApJ...191..357W]
16.91 +00.96IR FIR_I [1982ApJ...254..126M]
16.925+00.964IR 18152-1346 [1988IRASP.C......0J]
16.923+00.963M H2O-E [1999ApJS..123..487M], M H2O-E [1990A&AS...84..179C], M H2O-E A [1979ApJ...227..152B], M H2O-E [1995MNRAS.276...57C]
16.925+00.964R (H89alpha) [1995A&A...302..521C]
16.926+00.956IR IRS [1987A&A...176..245B], M OH-A [1993A&AS...98..589W]
16.918+00.741O HH216 M16-HH 1 [2000yCat.5104....0R]
16.94 +00.75R [1970AuJPA..14..133S], R [1990A&AS...85..805F], R [1994ApJS...91..111W], R [1979A&AS...35...23A], R 1 [1980A&AS...40..379D], R [1967ApJ...147..471M], R [1968AuJPh..21..881G], R 1 [1970ApJ...160...43F], R [1967ApJ...147..490M], R 1 [1979AJ.....84...77H], R [1989ApJS...71..469L], R 1 [1972MNRAS.159..129P], R [1974AJ.....79..786Z], O [1981ApJ...248..992M], M CO [1981ApJ...248..992M]
16.99 +00.92IR FIR_II [1982ApJ...254..126M]
16.983+00.799M H2O-E [1975ApJ...195...91Y], M CS [1996ApJ...463..205A], M OH-A [1975ApJ...195...91Y], M CO [1974ApJ...191..357W], M H2CO [1974A&A....37..389W], M OH-A [1968ApJS...15..131G]
16.98 +00.92O [1981ApJ...248..992M]
17.00 +00.92R [1970AuJPA..14..133S], R [1990A&AS...85..805F], R [1994ApJS...91..111W], R [1979A&AS...35...23A], R 1 [1980A&AS...40..379D], R [1968AuJPh..21..881G], R [1970ApJ...160...43F], R [1984A&AS...58..197R], R [1989ApJS...71..469L], R [1979AJ.....84...77H]
16.99 +00.92IR FIR_III [1982ApJ...254..126M]
16.984+00.934M H2O-E [1994A&A...291..261C], M H2O-E [1994A&AS..103..541B], M CO [1981ApJ...248..992M], M CO [1973ApJ...186..529S]
17.005+00.910IR 18156-1343 [1988IRASP.C......0J], M H2CO [1974A&A....37..389W], M H2CO [1980A&AS...40..379D], M H2CO [1970ApJ...160..485Z], M NH3 [1977ApJ...218..671S], M OH-A [1979A&AS...37....1T]
17.00 +00.87R 2 [1980A&AS...40..379D], R 2 [1979A&AS...35...23A], R [1989ApJS...71..469L]
17.01 +00.88IR RAFGL 2117 [1983AFGL..161....0P]
17.000+00.831IR 18159-1346 Rim B [1988IRASP.C......0J], IR 18159-1346 [1988IRASP.C......0J], M OH-A [1979A&AS...37....1T]
17.14 +00.76R [1979A&AS...35...23A], R [1989ApJS...71..469L]
17.130+00.723M H2O-E B [1979ApJ...227..152B], M OH-A [1993A&AS...98..589W]

Acknowledgement: based on the Catalog of Star-Forming Regions in the Galaxy ( Avedisova, V. S., Astronomy Reports, Volume 46, Issue 3, March 2002, pp.193-205 [2002ARep...46..193A]). The complete catalog can be accessed here: V/112/.

For more information, read The Avedisova catalog: A real Hitchhiker's Guide to the Galaxy?