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Detailed Chemical A...
Detailed Chemical Abundances for a Benchmark Sample of M Dwarfs from the APOGEE Survey
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- Souto, Diogo (författare)
- Univ Fed Sergipe, Sao Cristovao,Brazil.
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- Cunha, Katia (författare)
- Univ Arizona, Rio De Janeiro, Brazil.
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- Smith, Verne V. (författare)
- NOIRlab, USA.
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- Prieto, C. Allende (författare)
- Inst Astrof Sica Canarias,Tenerife, Spain.
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- Covey, Kevin (författare)
- Western Washington Univ,Bellingham, WA 98225 USA.
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- Garcia-Hernandez, D. A. (författare)
- Inst Astrof Sica Canarias, Tenerife, Spain.;Univ La Laguna, Dept Astrof Sica,Tenerife, Spain.
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- Holtzman, Jon A. (författare)
- New Mexico State Univ, Las Cruces, NM 88003 USA.
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- Jönsson, Henrik (författare)
- Malmö universitet,Institutionen för materialvetenskap och tillämpad matematik (MTM)
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- Mahadevan, Suvrath (författare)
- Penn State, Dept Astron & Astrophys, USA.
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- Majewski, Steven R. (författare)
- Univ Virginia, Dept Astron, Charlottesville, USA.
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- Masseron, Thomas (författare)
- Inst Astrof Sica Canarias Tenerife, Spain.;Univ La Laguna, Tenerife, Spain.
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- Pinsonneault, Marc (författare)
- Ohio State Univ, Dept Astron, Columbus, USA.
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- Schneider, Donald P. (författare)
- Penn State, Dept Astron & Astrophys, USA.
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- Shetrone, Matthew (författare)
- Univ Texas Austin, McDonald Observ, USA.
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- Stassun, Keivan G. (författare)
- Vanderbilt Univ, Dept Phys & Astron, USA.
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- Terrien, Ryan (författare)
- Carleton Coll, Dept Phys & Astron, USA.
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- Zamora, Olga (författare)
- Inst Astrof Sica Canarias, Spain.; Univ La Laguna, Dept Astrof Sica, Tenerife, Spain.
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- Stringfellow, Guy S. (författare)
- Univ Colorado, Ctr Astrophys & Space Astron, USA.
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- Lane, Richard R. (författare)
- Univ Bernardo Higgins,, Chile.
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- Nitschelm, Christian (författare)
- Univ Antofagasta, Ctr Astron, Chile
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- Rojas-Ayala, Barbara (författare)
- Univ Tarapac, Chile.
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Univ Fed Sergipe, Sao Cristovao,Brazil Univ Arizona, Rio De Janeiro, Brazil. (creator_code:org_t)
- 2022-03-09
- 2022
- Engelska.
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Ingår i: Astrophysical Journal. - : Institute of Physics (IOP). - 0004-637X .- 1538-4357. ; 927:1
- Relaterad länk:
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https://doi.org/10.3...
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https://mau.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Individual chemical abundances for 14 elements (C, O, Na, Mg, Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, and Ni) are derived for a sample of M dwarfs using high-resolution, near-infrared H-band spectra from the Sloan Digital Sky Survey-IV/Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey. The quantitative analysis included synthetic spectra computed with 1D LTE plane-parallel MARCS models using the APOGEE Data Release 17 line list to determine chemical abundances. The sample consists of 11 M dwarfs in binary systems with warmer FGK dwarf primaries and 10 measured interferometric angular diameters. To minimize atomic diffusion effects, [X/Fe] ratios are used to compare M dwarfs in binary systems and literature results for their warmer primary stars, indicating good agreement (<0.08 dex) for all studied elements. The mean abundance difference in primaries minus this work's M dwarfs is -0.05 +/- 0.03 dex. It indicates that M dwarfs in binary systems are a reliable way to calibrate empirical relationships. A comparison with abundance, effective temperature, and surface gravity results from the APOGEE Stellar Parameter and Chemical Abundances Pipeline (ASPCAP) Data Release 16 finds a systematic offset of [M/H], T (eff), log g = +0.21 dex, -50 K, and 0.30 dex, respectively, although ASPCAP [X/Fe] ratios are generally consistent with this study. The metallicities of the M dwarfs cover the range of [Fe/H] = -0.9 to +0.4 and are used to investigate Galactic chemical evolution via trends of [X/Fe] as a function of [Fe/H]. The behavior of the various elemental abundances [X/Fe] versus [Fe/H] agrees well with the corresponding trends derived from warmer FGK dwarfs, demonstrating that the APOGEE spectra can be used to examine Galactic chemical evolution using large samples of selected M dwarfs.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
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Souto, Diogo
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Cunha, Katia
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Smith, Verne V.
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Prieto, C. Allen ...
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Covey, Kevin
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Garcia-Hernandez ...
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Holtzman, Jon A.
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Jönsson, Henrik
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Mahadevan, Suvra ...
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Majewski, Steven ...
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Masseron, Thomas
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Pinsonneault, Ma ...
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Schneider, Donal ...
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Shetrone, Matthe ...
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Stassun, Keivan ...
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Terrien, Ryan
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Zamora, Olga
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Stringfellow, Gu ...
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Lane, Richard R.
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Nitschelm, Chris ...
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Rojas-Ayala, Bar ...
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Malmö universitet