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The Nearby Evolved Stars Survey II: Constructing a volume-limited sample and first results from the James Clerk Maxwell Telescope

  • P. Scicluna*
  • , F. Kemper
  • , I. McDonald
  • , S. Srinivasan
  • , A. Trejo
  • , S. H.J. Wallström
  • , J. G.A. Wouterloot
  • , J. Cami
  • , J. Greaves
  • , Jinhua He
  • , D. T. Hoai
  • , Hyosun Kim
  • , O. C. Jones
  • , H. Shinnaga
  • , C. J.R. Clark
  • , T. Dharmawardena
  • , W. Holland
  • , H. Imai
  • , J. Th Van Loon
  • , K. M. Menten
  • R. Wesson, H. Chawner, S. Feng, S. Goldman, F. C. Liu, H. MacIsaac, J. Tang, S. Zeegers, K. Amada, V. Antoniou, A. Bemis, M. L. Boyer, S. Chapman, X. Chen, S. H. Cho, L. Cui, F. Dell'Agli, P. Friberg, S. Fukaya, H. Gomez, Y. Gong, M. Hadjara, C. Haswell, N. Hirano, S. Hony, H. Izumiura, M. Jeste, X. Jiang, T. Kaminski, N. Keaveney, J. Kim, K. E. Kraemer, Y. J. Kuan, E. Lagadec, C. F. Lee, D. Li, S. Y. Liu, T. Liu, I. De Looze, F. Lykou, C. Maraston, J. P. Marshall, M. Matsuura, C. Min, M. Otsuka, M. Oyadomari, H. Parsons, N. A. Patel, E. Peeters, T. A. Pham, J. Qiu, S. Randall, G. Rau, M. P. Redman, A. M.S. Richards, S. Serjeant, C. Shi, G. C. Sloan, M. W.L. Smith, K. W. Suh, J. A. Toalá, S. Uttenthaler, P. Ventura, B. Wang, I. Yamamura, T. Yang, Y. Yun, F. Zhang, Y. Zhang, G. Zhao, M. Zhu, A. A. Zijlstra
*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

18   !!Link opens in a new tab 引文 斯高帕斯(Scopus)

摘要

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 CO J = (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 to Gaia EDR3. 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 × 10-5 M⊙ yr-1 from our sample. Our sub-mm fluxes are systematically higher and spectral indices are typically shallower than dust models typically predict. The 450/850 μm spectral indices are consistent with the blackbody Rayleigh-Jeans regime, suggesting a large fraction of evolved stars have unexpectedly large envelopes of cold dust.

原文英語
頁(從 - 到)1091-1110
頁數20
期刊Monthly Notices of the Royal Astronomical Society
512
發行號1
DOIs
出版狀態已發佈 - 2022 5月 1

ASJC Scopus subject areas

  • 天文和天體物理學
  • 空間與行星科學

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