Spectroscopy of hot stars in the galactic halo. III. Analysis of a large sample of field horizontal-branch and other A-type stars

Astronomical Journal

Volumn 117, Issue 5, 1999, Pages 2329-2380

  Wilhelm, Ronald ^a,i,j   Beers, Timothy C ^b,i   Sommer Larsen, Jesper ^c,i   Pier, Jeffrey R ^d,j   Layden, Andrew C ^e   Flynn, Chris ^f,i   Rossi, Silvia ^g,i   Christensen, Per Rex ^h,i  

^a The University of Texas at Austin   (United States)

^b MICHIGAN STATE UNIVERSITY   (United States)

^c THEORETICAL ASTROPHYSICS CENTER   (Denmark)

^d FLAGSTAFF STATION   (United States)

^e BOWLING GREEN STATE UNIVERSITY   (United States)

^f UNIVERSITY OF TURKU   (Finland)

^g UNIVERSITY OF SÃO PAULO   (Brazil)

^h UNIVERSITY OF COPENHAGEN   (Denmark)

ⁱ EUROPEAN SOUTHERN OBSERVATORY   (Chile)

^j LOWELL OBSERVATORY   (United States)

more..

Author keywords

Galaxy: halo; Stars: horizontal branch; Stars: population II

Indexed keywords

EID: 0000581218     PISSN: 00046256     EISSN: None     Source Type: Journal    
DOI: 10.1086/300864     Document Type: Article

References (45)

1. Beers, T. C. 1999, in ASP Conf. Ser. 166, Stromlo Workshop on High Velocity Clouds, ed. B. K. Gibson & M. E. Putman (San Francisco: ASP), in press
2. Beers, T. C., Preston, G. W., & Shectman, S. A. 1985, AJ, 90, 2089
3. _. 1988, ApJS, 67, 461
4. _. 1992a, AJ, 103, 1987
5. Beers, T. C., Preston, G. W., Shectman, S. A., Doinidis, S. P., & Griffin, K. E. 1992b, AJ, 103, 267 (Paper I)
6. Beers, T. C., Rossi, S. G., Norris, J. E., Ryan, S. G., & Shefler, T. 1999, AJ, 117, 988
7. Beers, T. C., Wilhelm, R., Doinidis, S. P., & Mattson, C. J. 1996, AJ, 103, 433
8. Bidelman, W. P. 1994, Inf. Bull. Variable Stars, No. 3995
9. Burstein, D., & Heiles, C. 1982, AJ, 87, 1165
10. Carney, B. W., Laird, J. B., Latham, D. W., & Aguilar, L. A. 1996, AJ, 112, 668
11. Carney, B. W., Wright, J. S., Sneden, C., Laird, J. B., Aguilar, L. A., & Latham, D. W. 1997, AJ, 114, 363
12. Clementini, G., Gratton, R. G., Carretta, E., & Sneden, C. 1999, MNRAS, 302, 22
13. Doinidis, S. P., & Beers, T. C. 1989, ApJ, 340, L57
14. _. 1990, PASP, 102, 1392
15. _. 1991, PASP, 103, 973
16. Harding, P., Mateo, M., Morrison, H., Freeman, K. C., & Norris, J. E. 1999, in ASP Conf. Ser. 165, The Third Stromlo Symposium, ed. B. K. Gibson, T. S. Axelrod, & M. E. Putman (San Francisco: ASP), in press
17. King, J. R. 1997, AJ, 113, 2302
18. Kinman, T. D., Suntzeff, N. B., & Kraft, R. P. 1994, AJ, 108, 1722
19. Lance, C. M. 1988, ApJ, 334, 927
20. Landolt, A. U. 1992, AJ, 104, 340
21. Majewski, S. R. 1992, ApJS, 78, 87
22. _. 1999, in ASP Conf. Ser. 165, The Third Stromlo Symposium, ed. B. K. Gibson, T. S. Axelrod, & M. E. Putman (San Francisco: ASP), in press
23. Majewski, S. R., Munn, J. A., & Hawley, S. L. 1996, ApJ, 459, L73
24. McWilliam, A., Preston, G. W., Sneden, C., & Searle, L. 1995, AJ, 109, 2757
25. Nissen, P. E., & Schuster, W. J. 1997, A&A, 326, 751
26. Norris, J. E. 1994, ApJ, 431, 645
27. Norris, J. E., Ryan, S. G., & Beers, T. C. 1999, ApJS, in press
28. Pier, J. R. 1982, AJ, 87, 1515
29. _. 1984, ApJ, 281, 260
30. Preston, G. W. 1996, in ASP Conf. Ser. 92, Formation of the Galactic Halo . . . Inside and Out, ed. H. Morrison & A. Sarajedini (San Francisco: ASP), 49
31. Preston, G. W., Beers, T. C., & Shectman, S. A. 1994, AJ, 108, 538
32. Preston, G. W., Shectman, S. A., & Beers, T. C. 1991a, ApJ, 375, 121 (PSBa)
33. _. 1991b, ApJS, 76, 1001 (PSBb)
34. Rodgers, A. W., & Roberts, W. H. 1993, AJ, 106, 1839
35. Ryan, S. G., Norris, J. E., & Beers, T. C. 1996, ApJ, 471, 254
36. Smith, H. A. 1995, RR Lyrae Stars (Cambridge: Cambridge Univ. Press)
37. Sneden, C., Cowan, J. J., Burris, D. L., & Truran, J. W. 1998, ApJ, 496, 235
38. Sommer-Larsen, J. 1999, in Galaxy Evolution: Connecting the Distant Universe with the Local Fossil Record, ed. M. Spite (Dordrecht: Kluwer), in press
39. Sommer-Larsen, J., Beers, T. C., Flynn, C., Wilhelm, R., & Christensen, P. R. 1997, ApJ, 481, 775
40. Sweigart, A. V. 1987, ApJS, 65, 95
41. Wilhelm, R. J. 1995, Ph.D. thesis, Michigan State Univ.
42. Wilhelm, R., Beers, T. C., & Gray, R. O. 1999a, AJ, 117, 2308 (Paper II)
43. Wilhelm, R., Beers, T. C., Kriessler, J. R., Pier, J. R., Sommer-Larsen, J., & Layden, A. C. 1996, in ASP Conf. Ser. 92, Formation of the Galactic Halo . . . Inside and Out, ed. H. Morrison & A. Sarajedini (San Francisco: ASP), 171
44. Wilhelm, R., Beers, T. C., Sommer-Larsen, J., Pier, J. R., Layden, A. C., Flynn, C., Rossi, S., & Christensen, P. R. 1999b, in preparation
45. Zinn, R. 1996, in ASP Conf. Ser. 92, Formation of the Galactic Halo . . . Inside and Out, ed. H. Morrison & A. Sarajedini (San Francisco: ASP), 211