Publication: Truncated stellar disks in the near infrared I. Observations
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2006-08
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Abstract
We present NIR surface photometry of 11 edge-on galaxies obtained in the course of a long term project aimed at analysing the occurrence and type of the truncation of the outer disks. Observations were carried out at the 1.5 m CST (Carlos Sanchez Telescope) in Tenerife (Spain) using the CAIN infrared camera. 7 galaxies exhibit clear truncation on their disk profiles and 4 galaxies were observed to be clearly untruncated within observational limits. We describe the truncations as real, smooth and complete (as suggested by extrapolation and in the sense that the measured truncation curve goes into the noise at a truncation radius R(tr)), following a decline proportional to (R(tr)-R)(-n) (where R is the radius). Despite its deep photometric reach, the data presented do not permit a detailed exploration of the region where optical data show a second slope. Special care was taken concerning the surface brightness deprojection of edge-on galaxies, which was carried out by two methods, one comprising the inversion of Abel's integral equation and the other following a numerical method. These methods gave nearly identical results. NIR observations of truncations could differ from observations in the optical, since the two domains trace different stellar populations.
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© ESO 2006. This paper has been supported by the “Plan Andaluz de Investigación” (FQM-108) and by the “Secretaría de Estado de Política Científica y Tecnológica” (AYA2004-08251-C02-02, ESP2004-06870-C02-02). This research has made use of the Hyper Leda database.
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Barteldrees, A., & Dettmar, R.-J. 1994, A&AS, 103, 475
Binney, J., & Tremaine, S. 1987, Galactic Dynamics, Princeton Ser. in Astrophys. (Princeton Univ. Press)
Casertano, S. 1983, MNRAS, 203, 735
Castro Rodríguez, N., & Garzón, F. 2003, A&A, 411, 55
Erwin, P., Beckman, J. E., & Pohlen, M. 2005, ApJ, 626, L81
Florido, E., Battaner, E., Guijarro, A., Garzón, F., & Jiménez Vicente, J. 2001, A&A, 378, 82 (F01)
Freeman, K. C. 1970, ApJ, 160, 811
de Grijs, R., Kregel, M., & Wesson, K. H. 2001, MNRAS, 324, 1074
Kregel, M., van der Kruit, P. C., & de Grijs, R. 2002, MNRAS, 334, 646
van der Kruit, P. C. 1979, A&AS, 38, 15
van der Kruit, P. C. 2001, in Galaxy Disks and Disk Galaxies, ed. J. G. Funes, & S. J. E. M. Corsini, ASP Conf. Ser., 230, 119
van der Kruit, P. C., & Searle, L. 1981a, A&A, 95, 105
van der Kruit, P. C., & Searle, L. 1981b, A&A, 95, 116
Pérez, I. 2004, A&A, 427, L17
Pohlen, M., Dettmar, R. J., Lütticke, R., & Aronica, G. 2002a, A&A, 392, 807
Pohlen, M., Dettmar, R. J., Lütticke, R., & Aronica, G. 2002b, ASP Conf. Proc., 275, 15
Pohlen, M., Beckman, J., Hüttemeister, S., et al. 2004, in Penetrating Bars through Masks of Cosmic Dust, ed. D. L. Block, et al. (Berlin: Springer), 713
Porcel, C. 1997, Ph.D. Thesis. University of Granada, 105
Schwarzkopf, U., & Dettmar, R.-J. 2000, A&A, 361, 451
Trujillo, I., & Pohlen, M. 2005, ApJ, 630, L17
Wainscoat, R., Cohen, M., Volk, K., Walker, H. J., & Schwartz, D. E. 1992, ApJS, 83, 111