The Nearby Evolved Stars Survey II: Constructing a volume-limited sample and first results from the James Clerk Maxwell Telescope
The Nearby Evolved Stars Survey II: Constructing a volume-limited sample and first results from the James Clerk Maxwell Telescope
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邻近演化恒星巡天 II:构建体积有限的样本以及詹姆斯·克拉克·麦克斯韦望远镜的第一个结果
DOI:
10.1093/mnras/stab2860
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发表时间:
2021-10
期刊:
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通讯作者:
et al.
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文献类型:
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作者:
P. Scicluna;F. Kemper;I. McDonald;S. Srinivasan;A. Trejo;S. H. J. Wallstro ̈m;J. G. A. Wouterloot;J. Cami;J. Greaves;Jinhua He;D. T. Hoai;et al.
The Nearby Evolved Stars Survey (NESS) is a volume-complete sample of ∼850 Galactic evolved stars within 3 kpc at (sub-)mm wavelengths, observed in the COJ= (2–1) and (3–2) rotational lines, and the sub-mm continuum, using the James Clark Maxwell Telescope and Atacama Pathfinder Experiment. NESS consists of five tiers, based on distances and dust-production rate (DPR). We define a new metric for estimating the distances to evolved stars and compare its results toGaiaEDR3. Replicating other studies, the most-evolved, highly enshrouded objects in the Galactic Plane dominate the dust returned by our sources, and we initially estimate a total DPR of 4.7 × 10−5M⊙yr−1from our sample. Our sub-mm fluxes are systematically higher and spectral indices are typically shallower than dust models typically predict. The 450/850m spectral indices are consistent with the blackbody Rayleigh–Jeans regime, suggesting a large fraction of evolved stars have unexpectedly large envelopes of cold dust.
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DOI:
10.1117/12.2249685
发表时间:
2016-08
期刊:
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作者:
W. Holland;J. Zmuidzinas
通讯作者:
W. Holland;J. Zmuidzinas
DOI:
10.1017/cbo9780511819056.007
发表时间:
2005-08
期刊:
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作者:
A. Tielens
通讯作者:
A. Tielens
DOI:
10.1142/s2251158x13000362
发表时间:
2006
期刊:
--
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DOI:
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发表时间:
2003-06
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作者:
R. Cutri;M. Skrutskie;S. V. Dyk;C. Beichman;J. Carpenter;T. Chester;L. Cambrésy;T. Evans;J. Fow
通讯作者:
R. Cutri;M. Skrutskie;S. V. Dyk;C. Beichman;J. Carpenter;T. Chester;L. Cambrésy;T. Evans;J. Fow
DOI:
--
发表时间:
2001
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作者:
PhD Deepto Chakrabarty;PhD Lindley Winslow;PhD Raymond Ashoori;PhD Edmund Bertschinger;PhD Claude R. Canizares-PhD-Claude-R.
通讯作者:
PhD Deepto Chakrabarty;PhD Lindley Winslow;PhD Raymond Ashoori;PhD Edmund Bertschinger;PhD Claude R. Canizares-PhD-Claude-R.