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Astrophysics > Solar and Stellar Astrophysics

arXiv:1307.7878 (astro-ph)
[Submitted on 30 Jul 2013]

Title:Kinematic distance study of the planetary nebulae-supernova remnant-HII region complex at G35.6-0.5

Authors:H. Zhu, W. W. Tian, D. F. Torres, G. Pedaletti, H. Q. Su
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Abstract:Two possible planetary nebulae (PN G035.5-00.4 and IRAS 18551+0159), one newly re-identified supernova remnant (SNR G35.6-0.4), and one HII region (G35.6-0.5) form a line-of-sight-overlapped complex known as G35.6-0.5. We analyze 21 cm HI absorption spectra towards the complex to constrain their kinematic distances. PN G035.5-00.4 has a distance from 3.8+/-0.4 kpc to 5.4+/-0.7 kpc. IRAS 18551+0159 is at 4.3+/-0.5 kpc. We discuss the distance for SNR 35.6-0.4, for which the previous estimate was 10.5 kpc, and find plausible for it to be 3.6+/-0.4 kpc. The new distance of SNR G35.6-0.4 and the derived mass for the ~55 km/s CO molecular cloud can accommodate an association with HESS J1858+020. We also conclude that SNR G35.6-0.4 is unlikely associated with PSR J1857+0210 or PSR J1857+0212, which are projected into the SNR area.
Comments: 10 pages, 21 figures, accepted for publication in ApJ
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
Cite as: arXiv:1307.7878 [astro-ph.SR]
  (or arXiv:1307.7878v1 [astro-ph.SR] for this version)
  https://doi.org/10.48550/arXiv.1307.7878
Related DOI: https://doi.org/10.1088/0004-637X/775/2/95

Submission history

From: Hui Zhu [view email]
[v1] Tue, 30 Jul 2013 09:12:38 UTC (489 KB)
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