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.
The molecular cloud may be interacting with the supernova remnant SNR G109.1 - 1.0.[
1]
This supernova remnant is about 30 thousand years old and contains the 143 ms pulsar PSR J0538+2817.[
2]
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.[
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. ^ 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]
2. ^ 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]
3. ^ 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]
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]