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
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.
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.
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.