Abstract
We present radial velocities for 33 stars in an optically obscured field toward the Galactic bulge at l=-1.14°, b=1.81°. The radial velocities are derived from spectra of the 2.3 µm CO bandhead that is prominent in late type giants. The heliocentric radial velocity and velocity dispersion are -75 ± 24 km s-1 and 127 ± 16 km s-1 respectively. Comparison to the axisymmetric mass model of Kent (1992) shows good agreement with the velocity dispersion, but there is some evidence (at the 2.1 σ level) for a more negative mean velocity. The more negative mean velocity is suggestive of streaming motion in a rotating barred potential such as derived by Binney et al. (1991).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Binney, J., Gerhard, O. E., Stark, A. A., Bally, J., & Uchida, K.I., 1991, MNRAS, 252, 210
Blitz, L. & Spergel, D.N., 1991, ApJ, 379, 631
Blum, R.D., Carr, J.S., DePoy, D.D., Sellgren, K., & Terndrup, D.M., 1994, ApJ, in press
Frogel, J. A. & Whitford, A.E., 1987, ApJ, 320, 199
Kent, S.M., 1992, ApJ, 387, 181
Kleinmann, S.G. & Hall, D.N.B., 1986, ApJS, 62, 501
Lindqvist, M., Habing, H.J., & Winnberg, A., 1992, A&A, 259, 118
Mathis, J.S., 1990, ARA&A, 28, 37
McGinn, M.T., Sellgren, K., Becklin, E.E., & Hall, D.N.B., 1989, ApJ, 338, 824
Rieke G.H. & Rieke, M.J., 1988, ApJL, 330, L33
Sellgren, K., McGinn, M.T., Becklin, E.E., & Hall, D.N.B., 1990, ApJ, 359, 112
Sharpies, R., Walker, A., & Cropper, M., 1990, MNRAS, 246, 54
Terndrup, D.M., Frogel, J.A., & Whitford, A.E., 1991, ApJ, 378, 742
Terndrup, D.M., Frogel, J.A., & Whitford, A.E., 1990, ApJ, 357, 453
Weiland et al., 1993, to be published in the proceedings of the “Back to the Galaxy” workshop. October, 12–14, 1992 University of Maryland, College Park, Maryland
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1994 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Blum, R., Carr, J., Depoy, D., Sellgren, K., Terndrup, D. (1994). Radial Velocities of M Giants at 300 PC Projected Radius from the Galactic Center. In: Genzel, R., Harris, A.I. (eds) The Nuclei of Normal Galaxies. NATO ASI Series, vol 445. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0752-5_9
Download citation
DOI: https://doi.org/10.1007/978-94-011-0752-5_9
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4323-6
Online ISBN: 978-94-011-0752-5
eBook Packages: Springer Book Archive