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LITTLE THINGS
文献类型：期刊论文
| 作者 | Hunter, Deidre A.1; Ficut-Vicas, Dana2; Ashley, Trisha3; Brinks, Elias2; Cigan, Phil4; Elmegreen, Bruce G.5; Heesen, Volker2; Herrmann, Kimberly A.1; Johnson, Megan1,10; Oh, Se-Heon6 |
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2012-11-01 |
| 卷号 | 144期号:5页码:134(29pp) |
| 关键词 | galaxies: irregular galaxies: ISM galaxies: kinematics and dynamics galaxies: star formation galaxies: structure |
| ISSN号 | 0004-6256 |
| 英文摘要 | We present LITTLE THINGS (Local Irregulars That Trace Luminosity Extremes, The Hi Nearby Galaxy Survey), which is aimed at determining what drives star formation in dwarf galaxies. This is a multi-wavelength survey of 37 dwarf irregular and 4 blue compact dwarf galaxies that is centered around Hi-line data obtained with the National Radio Astronomy Observatory (NRAO) Very Large Array (VLA). The Hi-line data are characterized by high sensitivity (<= 1.1 mJy beam(-1) per channel), high spectral resolution (<= 2.6 km s(-1)), and high angular resolution (similar to 6 ''). The LITTLE THINGS sample contains dwarf galaxies that are relatively nearby (<= 10.3 Mpc; 6 '' is <= 300 pc), that were known to contain atomic hydrogen, the fuel for star formation, and that cover a large range in dwarf galactic properties. We describe our VLA data acquisition, calibration, and mapping procedures, as well as Hi map characteristics, and show channel maps, moment maps, velocity-flux profiles, and surface gas density profiles. In addition to the Hi data we have GALEX UV and ground-based UBV and H alpha images for most of the galaxies, and JHK images for some. Spitzer mid-IR images are available for many of the galaxies as well. These data sets are available online. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DWARF IRREGULAR GALAXIES ; NEAR-INFRARED PHOTOMETRY ; NEUTRAL HYDROGEN OBSERVATIONS ; SURFACE-BRIGHTNESS PROFILES ; HIERARCHICAL STAR-FORMATION ; LARGE-MAGELLANIC-CLOUD ; TELESCOPE KEY PROJECT ; ON SPIRAL GALAXIES ; RED GIANT BRANCH ; H-I |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000310530400010 |
| 公开日期 | 2013-01-31 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8077]  |
| 专题 | 紫金山天文台_星系中的恒星形成研究团组 |
| 作者单位 | 1.Lowell Observ, Flagstaff, AZ 86001 USA 2.Univ Hertfordshire, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England 3.Florida Int Univ, Dept Phys, Miami, FL 33199 USA 4.New Mexico Inst Min & Technol, Dept Phys, Socorro, NM 87801 USA 5.IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA 6.Univ Western Australia, ICRAR, ARC Ctr Excellence All Sky Astrophys CAASTRO, Crawley, WA 6009, Australia 7.Natl Radio Astron Observ, Socorro, NM 87801 USA 8.Max Planck Inst Astron, D-69117 Heidelberg, Germany 9.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 10.Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA |
| 推荐引用方式 GB/T 7714 | Hunter, Deidre A.,Ficut-Vicas, Dana,Ashley, Trisha,et al. LITTLE THINGS[J]. ASTRONOMICAL JOURNAL,2012,144(5):134(29pp). |
| APA | Hunter, Deidre A..,Ficut-Vicas, Dana.,Ashley, Trisha.,Brinks, Elias.,Cigan, Phil.,...&Zhang, Hong-Xin.(2012).LITTLE THINGS.ASTRONOMICAL JOURNAL,144(5),134(29pp). |
| MLA | Hunter, Deidre A.,et al."LITTLE THINGS".ASTRONOMICAL JOURNAL 144.5(2012):134(29pp). |
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来源：紫金山天文台
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