Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147
We report the distance modulus of nearby dwarf elliptical galaxy NGC 147 estimated from the Tip of Red-giant Branch (TRGB) method applying to the color-magnitude diagrams and luminosity functions in the near-infrared JHK bands. Apparent magnitudes of TRGBs in each band are obtained by applying Savit...
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| Format: | Article |
| Language: | English |
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The Korean Space Science Society
2007-09-01
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| Series: | Journal of Astronomy and Space Sciences |
| Subjects: | |
| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2007/v24n3/OJOOBS_2007_v24n3_203.pdf |
| _version_ | 1827363737509560320 |
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| author | A. Kang J.-W. Kim I.-G. Shin S.-H. Chun H.-I. Kim Y.-J. Sohn |
| author_facet | A. Kang J.-W. Kim I.-G. Shin S.-H. Chun H.-I. Kim Y.-J. Sohn |
| author_sort | A. Kang |
| collection | DOAJ |
| description | We report the distance modulus of nearby dwarf elliptical galaxy NGC 147 estimated from the Tip of Red-giant Branch (TRGB) method applying to the color-magnitude diagrams and luminosity functions in the near-infrared JHK bands. Apparent magnitudes of TRGBs in each band are obtained by applying Savitzky-Golay filter to the luminosity functions, and the theoretical absolute magnitudes are estimated from Yonsei-Yale isochrones. The derived values of distance modulus to NGC 147 are (m-M)=23.69±0.12, 23.78±0.17, and 23.85±0.22 for J, H, and K bands, respectively. Distance modulus in bolometric magnitude is also derived as (m-M)=23.87±0.11. We compare the derived values of the TRGB distance modulus to NGC 147 in the near-infrared bands with the previous results in other bands. |
| first_indexed | 2024-03-08T07:54:26Z |
| format | Article |
| id | doaj.art-17ca550487be490cbeb78928564efaed |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T07:54:26Z |
| publishDate | 2007-09-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-17ca550487be490cbeb78928564efaed2024-02-02T14:07:28ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092007-09-0124320320810.5140/JASS.2007.24.3.203Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147A. Kang0J.-W. Kim1I.-G. Shin2S.-H. Chun3H.-I. Kim4Y.-J. Sohn5Department of Astronomy, IEAA, Yonsei University, Seoul 120-749, KoreaDepartment of Astronomy, IEAA, Yonsei University, Seoul 120-749, KoreaDepartment of Astronomy, IEAA, Yonsei University, Seoul 120-749, KoreaDepartment of Astronomy, IEAA, Yonsei University, Seoul 120-749, KoreaKorea Astronomy and Space science Institute, Hwaam-dong, Yuseong-gu, Daejeon 305-348, KoreaDepartment of Astronomy, IEAA, Yonsei University, Seoul 120-749, KoreaWe report the distance modulus of nearby dwarf elliptical galaxy NGC 147 estimated from the Tip of Red-giant Branch (TRGB) method applying to the color-magnitude diagrams and luminosity functions in the near-infrared JHK bands. Apparent magnitudes of TRGBs in each band are obtained by applying Savitzky-Golay filter to the luminosity functions, and the theoretical absolute magnitudes are estimated from Yonsei-Yale isochrones. The derived values of distance modulus to NGC 147 are (m-M)=23.69±0.12, 23.78±0.17, and 23.85±0.22 for J, H, and K bands, respectively. Distance modulus in bolometric magnitude is also derived as (m-M)=23.87±0.11. We compare the derived values of the TRGB distance modulus to NGC 147 in the near-infrared bands with the previous results in other bands.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2007/v24n3/OJOOBS_2007_v24n3_203.pdfTRGBdistance modulusnear-infraredNGC 147 |
| spellingShingle | A. Kang J.-W. Kim I.-G. Shin S.-H. Chun H.-I. Kim Y.-J. Sohn Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147 Journal of Astronomy and Space Sciences TRGB distance modulus near-infrared NGC 147 |
| title | Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147 |
| title_full | Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147 |
| title_fullStr | Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147 |
| title_full_unstemmed | Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147 |
| title_short | Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147 |
| title_sort | near ir trgb distance to dwarf elliptical galaxy ngc 147 |
| topic | TRGB distance modulus near-infrared NGC 147 |
| url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2007/v24n3/OJOOBS_2007_v24n3_203.pdf |
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