تقرير
MIRIS Pa{\alpha} Galactic Plane Survey. I. Comparison with IPHAS H{\alpha} in l = 96{\deg}-116{\deg}
| العنوان: | MIRIS Pa{\alpha} Galactic Plane Survey. I. Comparison with IPHAS H{\alpha} in l = 96{\deg}-116{\deg} |
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| المؤلفون: | Kim, Il-Joong, Pyo, Jeonghyun, Jeong, Woong-Seob, Seon, Kwang-Il, Nakagawa, Takao, Kim, Min Gyu, Park, Won-Kee, Lee, Dae-Hee, Lee, Dukhang, Moon, Bongkon, Park, Sung-Joon, Park, Youngsik, Matsumoto, Toshio, Han, Wonyong |
| سنة النشر: | 2018 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Astrophysics of Galaxies |
| الوصف: | The Multipurpose InfraRed Imaging System (MIRIS) performed the MIRIS Pa{\alpha} Galactic Plane Survey (MIPAPS), which covers the entire Galactic plane within the latitude range of -3{\deg} < b < +3{\deg} at Pa{\alpha} (1.87 um). We present the first result of the MIPAPS data extracted from the longitude range of l = 96.5{\deg}-116.3{\deg}, and demonstrate the data quality and scientific potential of the data by comparing them with H{\alpha} maps obtained from the INT Photometric H{\alpha} Survey (IPHAS) data. We newly identify 90 H II region candidates in the WISE H II region catalog as definite H II regions by detecting the Pa{\alpha} and/or H{\alpha} recombination lines, out of which 53 H II regions are detected at Pa{\alpha}. We also report the detection of additional 29 extended and 18 point-like sources at Pa{\alpha}. We estimate the E(B-V) color excesses and the total Lyman continuum luminosities for H II regions by combining the MIPAPS Pa{\alpha} and IPHAS H{\alpha} fluxes. The E(B-V) values are found to be systematically lower than those estimated from point stars associated with H II regions. Utilizing the MIPAPS Pa{\alpha} and IPHAS H{\alpha} images, we obtain an E(B-V) map for the entire region of the H II region Sh2-131 with an angular size of ~2.5{\deg}. The E(B-V) map shows not only numerous high-extinction filamentary features but also negative E(B-V) regions, indicating H{\alpha} excess. The H{\alpha} excess and the systematic underestimation of E(B-V) are attributed to light scattered by dust. Comment: 14 pages, 9 figures, 8 tables; accepted for publication in ApJS |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/1538-4365/aae080 |
| URL الوصول: | http://arxiv.org/abs/1809.04865 |
| رقم الأكسشن: | edsarx.1809.04865 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/1538-4365/aae080 |
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