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arXiv 1707.08402astro-ph.GA
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SAMI星系巡天:发射线物理增值产品数据发布1

The SAMI Galaxy Survey: Data Release One with Emission-line Physics Value-Added Products

Andrew W. Green, Scott M. Croom, Nicholas Scott, Luca Cortese, Anne M. Medling, Francesco D'Eugenio, Julia J. Bryant, Joss Bland-Hawthorn, J. T. Allen, Rob Shar… 展开作者

Andrew W. Green, Scott M. Croom, Nicholas Scott, Luca Cortese, Anne M. Medling, Francesco D'Eugenio, Julia J. Bryant, Joss Bland-Hawthorn, J. T. Allen, Rob Sharp, I-Ting Ho, Brent Groves, Michael J. Drinkwater, Elizabeth Mannering, Lloyd Harischandra, Jesse van de Sande, Adam D. Thomas, Simon O'Toole, Richard M. McDermid, Minh Vuong, Katrina Sealey, Amanda E. Bauer, S. Brough, Barbara Catinella, Gerald Cecil, Matthew Colless, Warrick J. Couch, Simon P. Driver, Christoph Federrath, Caroline Foster, Michael Goodwin, Elise J. Hampton, A. M. Hopkins, D. Heath Jones, Iraklis S. Konstantopoulos, J. S. Lawrence, Sergio G. Leon-Saval, Jochen Liske, Angel R. Lopez-Sanchez, Nuria P. F. Lorente, Jeremy Mould, Danail Obreschkow, Matt S. Owers, Samuel N. Richards, Aaron S. G. Robotham, Adam L. Schaefer, Sarah M. Sweet, Dan S. Taranu, Edoardo Tescari, Chiara Tonini, T. Zafar

摘要:

我们提出了SAMI星系调查数据的第一个主要版本。本数据发布的重点是星系的发射线物理学。数据发布一包括772个星系的数据,约占全部调查的20%。这些星系的红移范围为0.004 < z < 0.092,质量范围很大(7.6 < log(M恒星/M $_\odot$)< 11.6),恒星形成速率为10^-4至10 ^1\ M $_\odot$ /年。对于每个星系,我们包括两个光谱立方体和一组空间分辨的二维地图:单组分和多组分发射线拟合(强线的尘埃消光校正),局部尘埃消光和恒星形成率。光纤吞吐量、通量和差分大气折射的校准在早期数据发布中得到了改进。在15弧秒的视场内,平均空间分辨率为2.16弧秒(FWHM),在H α附近的光谱(运动学)分辨率为R=4263(σ = 30 km/s)。相对通量定标优于5%,绝对通量定标优于$\pm0.22$ ~mag,但后者受星系测光的限制。这些数据通过澳大利亚天文台的数据中心在线提供。

英文摘要:

We present the first major release of data from the SAMI Galaxy Survey. This data release focuses on the emission-line physics of galaxies. Data Release One includes data for 772 galaxies, about 20% of the full survey. Galaxies included have the redshift range 0.004 < z < 0.092, a large mass range (7.6 < log(Mstellar/M$_\odot$) < 11.6), and star-formation rates of 10^-4 to 10^1\ M$_\odot$/yr. For each galaxy, we include two spectral cubes and a set of spatially resolved 2D maps: single- and multi-component emission-line fits (with dust extinction corrections for strong lines), local dust extinction and star-formation rate. Calibration of the fibre throughputs, fluxes and differential-atmospheric-refraction has been improved over the Early Data Release. The data have average spatial resolution of 2.16 arcsec (FWHM) over the 15~arcsec diameter field of view and spectral (kinematic) resolution R=4263 (sigma=30km/s) around Halpha. The relative flux calibration is better than 5\% and absolute flux calibration better than $\pm0.22$~mag, with the latter estimate limited by galaxy photometry. The data are presented online through the Australian Astronomical Observatory's Data Central.

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