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The boxy bulge and stellar bar of the Milky Way

Published online by Cambridge University Press:  01 July 2007

T. J. Mahoney ,
M. López-Corredoira ,
A. Cabrera-Lavers ,
P. L. Hammersley ,
C. González-Fernández  and
F. Garzón
T. J. Mahoney
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain email: tjm@iac.es
M. López-Corredoira
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain email: tjm@iac.es
A. Cabrera-Lavers
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain email: tjm@iac.es
P. L. Hammersley
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain email: tjm@iac.es
C. González-Fernández
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain email: tjm@iac.es
F. Garzón
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain email: tjm@iac.es
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Abstract

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We describe the boxy bulge, long stellar bar and elliptical ring of the Galaxy. This model has largely evolved from NIR survey work by many teams and differs from other models with a monolithic ellipsoidal bulge. We maintain that the structure of the inner Galaxy can only be properly studied by adequately sampling the entire Galactic plane for |l| < 30°, |b| < 1.5°, and that the bulge is best studied at least 3° from the plane. We briefly report a slight radially outwardly increasing metallicity gradient along the bar and reaffirm de Vaucouleurs & Pence's (1978) suggestion that the Galaxy is probably of morphological type SAB(rs)bc II.

Keywords

Galaxy: bulgeGalaxy: stellar contentGalaxy: structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S245: Formation and Evolution of Galaxy Bulges , July 2007 , pp. 343 - 346
Copyright
Copyright © International Astronomical Union 2008

References

Benjamin, R. A., et al. 2005, ApJ 630, L153 (B05)CrossRefGoogle Scholar
Blitz, L. & Spergel, D. N. 1991, ApJ 379, 631CrossRefGoogle Scholar
Cabrera-Lavers, A., et al. 2007, A&A 465, 825 (C07)Google Scholar
Calbet, X., et al. 1996, ApJ 457, L27CrossRefGoogle Scholar
Dwek, E. et al. 1995, ApJ 445, 716CrossRefGoogle Scholar
de Vaucouleurs, G. 1964 in: Kerr, F. & Rodgers, A. (ed.) The Galaxy and the Magellanic Clouds (Reidel), p. 195Google Scholar
de Vaucouleurs, G. & Pence, W. D. 1978, AJ 83, 1163CrossRefGoogle Scholar
Frogel, J. A., Stephens, A., Ramírez, S. & DePoy, D. L 2001, ApJ 122, 1896CrossRefGoogle Scholar
Frogel, J. A. & Whitford, A. E. 1987, ApJ 320, 199CrossRefGoogle Scholar
Garzón, F., et al. 1993, MNRAS 264, 773CrossRefGoogle Scholar
Garzón, F., et al. 1997, ApJ 491, L31CrossRefGoogle Scholar
Gerhard, O. E. 1996, in: Blitz, L. & Teuben, P.IAUS 169: (Kluwer), p. 79Google Scholar
Hammersley, P. L., Garzón, F., Mahoney, T. & Calbet, X. 1994, MNRAS 269, 753CrossRefGoogle Scholar
Hammersley, P. L., et al. 2000, MNRAS 317, L45 (H00)CrossRefGoogle Scholar
López-Corredoira, M., Cabrera-Lavers, A. & Gerhard, O. E. 2005, A&A 439, 107 (L05)Google Scholar
López-Corredoira, M., et al. 2007, ApJ 133, 154 (L07)CrossRefGoogle Scholar
López-Corredoira, M., et al. 1999, ApJ 118, 381CrossRefGoogle Scholar
López-Corredoira, M., et al. 1997, MNRAS 292, L15 (L97)Google Scholar
López-Corredoira, M., et al. 2000, MNRAS 313, 392 (L00)CrossRefGoogle Scholar
López-Corredoira, M., et al. 2001, A&A 373, 139 (L01)Google Scholar
Lucy, L. B. 1974, AJ 79, 745CrossRefGoogle Scholar
Matsumoto, T., et al. 1982, in: Riegler, G. R. & Blandford, R. D. (ed.) The Galactic Center (AIP), p. 48Google Scholar
Mollá, M., Ferrini, F. & Gozzi, G. 2000, MNRAS 316, 345CrossRefGoogle Scholar
Oort, J. H. 1977, ARAA 15, 295CrossRefGoogle Scholar
Paul, E. R. 1993, The Milky Way Galaxy and Statistical Cosmology (CUP)Google Scholar
Picaud, S., Cabrera-Lavers, A. & Garzón, F 2003, A&A 408, 141Google Scholar
Ramírez, S. V., Stephens, A. W., Frogel, J. A., & DePoy, D. L. 2000, ApJ 120, 833CrossRefGoogle Scholar
Robin, A. C., Reylé, C., Derrière, S., & Picaud, S. 2003, A&A 409, 523Google Scholar
Rocha-Pinto, H. J., et al. 2006, A&A 453, L9Google Scholar
Sevenster, M., Saha, P., Valls-Gabaud, D. & Fux, R. 1999, MNRAS 307, 584CrossRefGoogle Scholar
Trumpler, R. J. & Weaver, H. F. 1953, Statistical Astronomy (Univ. California Press)CrossRefGoogle Scholar
Wainscoat, R. J., et al. 1992, ApJS 83, 111 (W92)CrossRefGoogle Scholar