G49.2−0.7 ADS: search title/keyword/abstract or fulltext

(W51) ADS: search title/keyword/abstract or fulltext

• Right Ascension: 19 23 50
• Declination: +14 06
• Size (/arcmin): 30
• Type: S?
• Flux density at 1 GHz (/Jy): 160?
• Spectral Index: 0.3?

Notes: Has erroneously been called G49.1−0.1.

Radio: In complex region, parameters uncertain.

Optical: Some diffuse emission possibly associated.

X-ray: Elongated east–west.

Distance: Association with CO gives 6 kpc, optical absorption suggests 5.7 kpc, HI absorption suggests 5.4 kpc.

References:

• Shaver & Goss 1970, AuJPA, 14, 133. Parkes 64-m at 5 GHz (4′). ADS
• Sato 1973, PASJ, 25, 135. HI absorption. ADS
• Velusamy & Kundu 1974, A&A, 32, 375. NRAO 300-ft at 2.7 GHz (5′), S=51.5±3.2 Jy, for the non-thermal component, but probably confused. ADS
• Altenhoff et al. 1979, A&AS, 35, 23. Effelsberg 100-m at 4.9 GHz (2.′6). ADS
• Seward 1990, ApJS, 73, 781. Einstein observations. ADS
• Copetti & Schmidt 1991, MNRAS, 250, 127. 151 MHz observations. ADS
• Kassim 1992, AJ, 103, 943. VLA at 327 MHz (3.′1×3.′5). ADS
• Subrahmanyan & Goss 1995, MNRAS, 275, 755. VLA at 330 MHz (1.′1). ADS
• Koo et al. 1995, ApJ, 447, 211. ROSAT observations. ADS
• Frail et al. 1996, AJ, 111, 1651. OH emission near remnant. ADS
• Gorham et al. 1996, ApJ, 458, 257. Pulsar search. ADS
• Green et al. 1997, AJ, 114, 2058. OH masers. ADS
• Koo & Moon 1997, ApJ, 475, 194. Arecibo (3′) and VLA (40″×42″) at 1.4 GHz for HI. ADS
• Koo & Moon 1997, ApJ, 485, 263. NRAO 12-m CO and HCO⁺ observations. ADS
• Brogan et al. 2000, ApJ, 537, 875. VLA at 1.7 GHz for OH Zeeman splitting. ADS
• Mavromatakis et al. 2001, A&A, 370, 265. Optical observations. ADS
• Koo et al. 2002, AJ, 123, 1629. ASCA observations. ADS
• Koo et al. 2005, ApJ, 633, 946. Chandra observations. ADS
• Kang & Koo 2007, ApJS, 173, 85. High velocity HI. ADS
• Hewitt et al. 2008, ApJ, 683, 189. GBT at 1.6 and 1.7 GHz for OH masers. ADS
• Abdo et al. 2009, ApJ, 706, L1. Fermi observations. ADS
• Koo et al. 2010, AJ, 140, 262. HI Zeeman splitting observations. ADS
• Ceccarelli et al. 2011, ApJ, 740, L4. Molecular line observations of region. ADS
• Aleksić et al. 2012, A&A, 541, A13. γ-ray observations. ADS
• Hanabata et al. 2013, PASJ, 65, 42. Suzaku observations. ADS
• Tian & Leahy 2013, ApJ, 769, L17. HI observations of region. ADS
• Brogan et al. 2013, ApJ, 771, 91. VLA at 74 MHz (84″×92″) and 320 MHz (33″×35″), plus OH, molecular line and other observations. ADS
• Park et al. 2013, ApJ, 777, 14. Arecibo of HI in region. ADS
• Sasaki et al. 2014, A&A, 563, A9. XMM-Newton observations. ADS
• Pihlström et al. 2014, AJ, 147, 73. VLA search for methanol masers. ADS
• Dumes et al. 2014, ApJ, 786, L24. Molecular line observations. ADS
• Jogler & Funk 2016, ApJ, 816, 100. Fermi observations. ADS
• McEwen et al. 2016, ApJ, 826, 189. NH₃ and CH₃OH observations. ADS
• Acero et al. 2016, ApJS, 224, 8. Fermi observations. ADS
• Shan et al. 2018, ApJS, 238, 35. Optical absorption for distance. ADS
• Ranasinghe & Leahy 2018, AJ, 155, 204. VGPS HI absorption observations. ADS
• Lee et al. 2019, AJ, 157, 123. [FeII] IR observations. ADS
• Beuther et al. 2019, A&A, 628, A90. OH maser observations. ADS
• Wang et al. 2020, A&A, 639, A72. Optical extinction for distance. ADS
• Dokara et al. 2021, A&A, 651, A86. VLA at 4 to 8 GHz (18″: S=0.8 Jy) including polarisation, and Spitzer observations. ADS
• Sofue et al. 2021, ApJS, 253, 17. Nobeyama 45-m CO observations (20″) of region. ADS
• Reyes-Iturbide et al. 2022, MNRAS, 516, 6055. Optical and XMM-Newton observations. ADS
• Shimaguchi et al. 2022, PASJ, 74, 656. Suzaku observations. ADS
• Yamagishi et al. 2023, PASJ, 75, 883. CO and [CI] observations of region. ADS

Last updated: 12 Mar 2024

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