A catalog of rotational and radial velocities for evolved stars. IV. Metal-poor stars ⋆,⋆⋆

By J. D. Medeiros, J. R. P. Silva, J. Nascimento, B. C. Martins, L. D. Silva, C. Melo, M. Burnet. 2006

185 citations recorded by the source corpus.

Aims. The present paper describes the first results of an observational program intended to refine and extend the existing $v \sin i$ measurements of metal-poor stars, with an emphasis on field evolved stars. Methods. The survey was carried out with the FEROS and CORALIE spectrometers. For the $v \sin i$ measurements, obtained from spectral synthesis, we estimate an uncertainty of about 2.0 ${\rm km\,s}^{-1}$. Results. Precise rotational velocities ${v\sin i}$ are presented for a large sample of 100 metal-poor stars, most of them evolving off the main–sequence. For the large majority of the stars composing the present sample, rotational velocities have been measured for the first time.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/319e6f124cdec1748bac74f06549882c99ae6fa9

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In Astronomy and Astrophysics

1. J. Johnson
2. G. Marcy
3. B. Bowler
4. Debra A. Fischer
5. Jorge Meléndez
6. S. Hekker
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In Instrumentation

1. G. Marcy
2. J. Johnson
3. B. Bowler
4. Jorge Meléndez
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6. Debra A. Fischer
7. Bun'ei Sato
8. D. Murata

Citations in the corpus

• RETIRED A STARS AND THEIR COMPANIONS. III. COMPARING THE MASS–PERIOD DISTRIBUTIONS OF PLANETS AROUND A-TYPE STARS AND SUN-LIKE STARS (2009, background): “HD 8375 is a known spectroscopic binary (Beavers & Eitter 1986; de Medeiros & Mayor 1999; Snowden & Young 2005) but to our knowledge no orbit has been published.”
• SIMULATING THE COMMON ENVELOPE PHASE OF A RED GIANT USING SMOOTHED-PARTICLE HYDRODYNAMICS AND UNIFORM-GRID CODES (2011, background): “Giant stars are slow rotators with rotational velocities of the order of a few km s−1 (de Medeiros & Mayor 1999).”
• Stellar Parameters and Elemental Abundances of Late-G Giants (2008, result): “(d) Comparison of such derived ve sini values with the literature values: filled circles are those from de Medeiros and Mayor (1999) (128 stars in common), while open triangles are those from Massarotti et al. (2008) (plotted for 96 stars out of 157 stars in common, where 61 stars with ve sin…”
• Giants in the Local Region (2007, methodology): “Space velocities were computed for the sample using theHipparcos proper motions (Perryman et al. 1997) and radial velocities from either de Medeiros & Mayor (1999) or Famaey et al. (2005), or determined from our spectra (accuracy of about 1 km s 1 based on comparison with de Medeiros & Mayor and…”
• New and Confirmed Triple Systems with Luminous Cool Primaries and Hot Companions (2004, methodology): “When no orbit was found, radial velocities have been gleaned from SIMBAD sources and from de Medeiros et al. (2002) and studied for variability.”
• FORETELLINGS OF RAGNARÖK: WORLD-ENGULFING ASYMPTOTIC GIANTS AND THE INHERITANCE OF WHITE DWARFS (2012, background): “…which is likely a reasonable approximation as the spin rates of giants are very low: rotational velocities of RGB stars are on averagev sin i ≤ 2km s−1 (see e.g. de Medeiros & Mayor 1999), with rapid rotators representing less than 2% of a sample of 1300 K giants (Carlberg et al. 2011).”
• ROTATIONAL AND RADIAL VELOCITIES FOR A SAMPLE OF 761 HIPPARCOS GIANTS AND THE ROLE OF BINARITY (2007, unknown): “Studies of binaries with a giant component include those of Mermilliod & Mayor (1992) and De Medeiros et al. (2002, 2004).”
• Precise radial velocities of giant stars. III. Spectroscopic stellar parameters (2007, methodology): “Our rotational velocities are comparable with those obtained by Gray (1989), but somewhat higher than those of de Medeiros & Mayor (1999), which is consistentwith the different diagnostics used to determine them.”
• Radial Velocity Search for Extrasolar Planets in Visual Binary Systems (2009, unknown): “…15800 13.39 4.8 2.32 (g)(h) ADS 9559 A 135722 74666 3.47 G8 III 104.9 3800 27.94 1.2 (a) BDS 10966A 203857 105637 6.45 K5 III 365.4 70000 3.54 (a) de Medeiros and Mayor (1999), (b) Nordström et al. (2004), (c) Desidera et al. (2006) (d) Fekel (1997), (e) Hale (1994), (f) Gondoin (1999), (g)…”