Sh 2-149
Coordinates: (108.39°, -1.03°)
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Avedisova combines Sh 2-147, Sh 2-148 and Sh 2-149 into the star formation region SFR 108.27-1.07, which is ionised by two uncatalogued O8 V and B0 V stars and includes the star cluster King 10 and the young stellar object 2MASX J22555978+5814424.
Sh 2-147, Sh 2-148, and Sh 2-149 form one of the two cores of the 105 thousand solar mass molecular cloud [UUT2000] Cloud A. (The other core is associated with Sh 2-152 and Sh 2-153.) This molecular cloud may be interacting with the supernova remnant SNR G109.1-01.0 (CTB 109).
The molecular cloud can be seen in this MSX infrared image. The same field at radio frequencies reveals the supernova remnant.
Sh 2-147, Sh 2-148, and Sh 2-149 form one of the two cores of the 105 thousand solar mass molecular cloud [UUT2000] Cloud A. (The other core is associated with Sh 2-152 and Sh 2-153.) This molecular cloud may be interacting with the supernova remnant SNR G109.1-01.0 (CTB 109).
The molecular cloud can be seen in this MSX infrared image. The same field at radio frequencies reveals the supernova remnant.
Sh 2-147, Sh 2-148, Sh 2-149, Sh 2-152 and Sh 2-153 are all parts of the same giant molecular cloud located at a distance of about 4500 pc.[1]
The molecular cloud may be interacting with the supernova remnant SNR G109.1 - 1.0.[2]
This supernova remnant is about 30 thousand years old and contains the 143 ms pulsar PSR J0538+2817.[3]
Note that Russeil gives a distance estimate of 2390 +/- 210 pc for Sh 2-152 and Sh 2-153. [4] This suggests that the cloud may be much closer than the roughly 4500 pc estimates typically given for the Sh 2-147 to Sh 2-149 complex and perhaps this complex is also located at the nearer distance.
The molecular cloud may be interacting with the supernova remnant SNR G109.1 - 1.0.[2]
This supernova remnant is about 30 thousand years old and contains the 143 ms pulsar PSR J0538+2817.[3]
Note that Russeil gives a distance estimate of 2390 +/- 210 pc for Sh 2-152 and Sh 2-153. [4] This suggests that the cloud may be much closer than the roughly 4500 pc estimates typically given for the Sh 2-147 to Sh 2-149 complex and perhaps this complex is also located at the nearer distance.
Notes
1. ^ Kahane, C., Guilloteau, S., & Lucas, R. (1985). "A multiline study of a typical giant molecular cloud - S 147/S 153", Astronomy and Astrophysics, Vol. 146, 325-336. [1985A&A...146..325K]
2. ^ Tatematsu, K., Nakano, M., Yoshida, S., et al. (1985). "CO observations of the S147/S153 complex associated with the SNR G109.1 - 1.0", Publications of the Astronomical Society of Japan, Vol. 37, 345-358. [1985PASJ...37..345T]
3. ^ Kramer, M., Lyne, A. G., Hobbs, G., et al. (2003). "The Proper Motion, Age, and Initial Spin Period of PSR J0538+2817 in S147", The Astrophysical Journal, Vol. 593, L31-L34. [2003ApJ...593L..31K]
4. ^ Russeil, D., Adami, C., & Georgelin, Y. M. (2007). "Revised distances of Northern HII regions", Astronomy and Astrophysics, Vol. 470, 161-171. [2007A&A...470..161R]
Distance estimates
5400 pc [1982ApJS...49..183B]4500 pc +/- 600 [1984NInfo..56...59A]
4500 pc [1985A&A...146..325K]
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Most of the sources used to create these nebula descriptions are listed in the
notes section for each description. In some cases,
for example the Avedisova, Humphreys and Reed catalogs, the source is used extensively and is not listed in the
individual nebula descriptions. See this catalog overview
for more information on the catalogs and the general sources used
to create these descriptions and this introduction to HII regions
on the general history of this area of astronomy.
This image was created using the POSS-II/UKSTU data of the Digitized Sky Survey and SuperCOSMOS using the process described here.
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and this acknowledgement taken from the DSS site:
The Digitized Sky Surveys were produced at the Space Telescope Science Institute under U.S. Government grant NAG W-2166. The images of these surveys are based on photographic data obtained using the Oschin Schmidt Telescope on Palomar Mountain and the UK Schmidt Telescope. The plates were processed into the present compressed digital form with the permission of these institutions.
The Second Palomar Observatory Sky Survey (POSS-II) was made by the California Institute of Technology with funds from the National Science Foundation, the National Geographic Society, the Sloan Foundation, the Samuel Oschin Foundation, and the Eastman Kodak Corporation.
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