Publication: Variation of the ultraviolet extinction law across the Taurus-Auriga star-forming complex. A GALEX based study
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2015-06-01
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Wiley
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The Taurus-Aurigamolecular complex (TMC) is the main laboratory for the study of low-mass star formation. The density and properties of interstellar dust are expected to vary across the TMC. These variations trace important processes such as dust nucleation or the magnetic field coupling with the cloud. In this paper, we show how the combination of near ultraviolet (NUV) and infrared (IR) photometry can be used to derive the strength of the 2175 Å bump and thus any enhancement in the abundance of small dust grains and polycyclic aromatic hydrocarbons in the dust grains size distribution. This technique is applied to the envelope of the TMC, mapped by the GALEXAll Sky Survey (AIS). Ultraviolet and IR photometric data have been retrieved from the GALEX-AIS and the 2MASS catalogues. NUV and K-band star counts have been used to identify the areas in the cloud envelope where the 2175 Å bump is weaker than in the diffuse interstellar medium namely, the low column density extensions of L1495, L1498 and L1524 in Taurus, L1545, L1548, L1519, L1513 in Auriga and L1482-83 in the California region. This finding agrees with previous results on dust evolution derived from Spitzer data and suggests that dust grains begin to decouple from the environmental Galactic magnetic field already in the envelope.
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© The Royal Astronomical Society.
This work has been partially funded by the Ministry of Science and Innovation of Spain through grant: AYA2011-29754-C03-C01 and AYA2011-29754-C03-C03. This paper is based on data obtained by the NASA mission GALEX.
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Arce, H.G., Goodman, A. A., 1999, ApJ, 517, 264
Benson, P. , Myers, P.C., 1983, ApJ , 270, 589
Bianchi, L., 2014, Ap&SS, 354, 103
Bok, B.J., Cordwell, C.S., 1973, Molecules in the Galactic Environment, Proceedings of a Symposium, held at the University of Virginia, November 4-7, 1971, Edited by M.A. Gordon, and Lewis E. Snyder. New York, NY: John Wiley and Sons, p.54
Cernicharo, J., Bachiller, R., 1984 A&AS , 58, 327
Cutri, R.M., Wright, E.L., Conrow, T. et al., 2012, Explanatory Supplement to the WISE All-Sky Data Release Products
Czekaj, M.A., Robin, A.C., Figueras, F. et al., 2014, A&A, 564, 102
Chapman, N.L., Goldsmith, P.F., Pineda, J.L. et al., 2011, ApJ , 741, 21
Davis, C.J., Chrysostomou, A., Hatchell, J., et al, 2010, MNRAS , 405, 759
Dickman, R.L., 1978, AJ, 83, 363
Draine, B.T., Malhotra, S., 1993, ApJ, 414, 632
Draine, B.T., 1989, Interstellar Dust: Proceedings of the 135th Symposium of the International Astronomical Union, held in Santa Clara, California, 26-30 July 1988. Edited by Louis J. Allamandola and A. G. G. M. Tielens. International Astronomical Union. Symposium no. 135, Kluwer Academic Publishers, Dordrecht, p.313
Draine, B.T., 2003, ARA&A, 41, 241
Dunham, M., Stutz, A., Allen, L. et al. 2013, Protostars and Planets VI, in press.
Elmegreen, B. G., 1990, ApJ, 357, 125
Fitzpatrick, E.L., Massa, D., 2007, ApJ, 663, 320 (FM07)
Flagey, N., Noriega-Crespo, A., Boulanger, F., et al. 2009, ApJ, 701, 1450
Franco, J., Kim, J., Alfaro, E.J. et al. , 2002, ApJ , 570, 647
Froebrich, D., Murphy, G. C., Smith, M. D., Walsh, J., & Del Burgo, C. 2007, MNRAS, 378, 1447 (F07)
Gaida, M., Ungerechts, H., Winnewisser, G., 1984, A&Ap, 1387, 17
Goldsmith, P.F., Heyer, M., Narayanan, G., et al. 2008, ApJ, 680, 428
Goldsmith, P.F., Velusamy, T., Li, D. et al., 2010, ApJ, 715, 1370
Gómez de Castro, A.I., and Pudritz, R.E., 1992, ApJ, 395, 501
Gómez de Castro, A.I., López Santiago, J., Sestito, P. et al. 2011, ApSS, 335, 97
Gómez de Castro, A.I., López Santiago, J., López Martínez, F. et al. 2015, ApJS, 216, 26
Goodman, A.A., Bastien, P., Menard, P. et al., 1990, ApJ, 359, 363
Goodman, A.A., Pineda, J.E., Schnee, S.L., 2009, ApJ, 692, 91
Gorbikov, E., Brosch, N., 2010, MNRAS, 401, 231
Gredel, R., Carpentier, Y., Rouillé, G., et al., 2011, A&A, 350, 26
Haywood, M., Robin, A.C., Creza, M., 1997, A&A, 320, 428
Heyer, M.H., Vrba, F.J., Snell, R.L. et al., 1987, ApJ, 321, 855
Heyer, M.H., Brunt, C.M., 2012, MNRAS , 420, 1562
Kirk, J.M., Ward-Thompson, D., Palmeirim, P., et al., 2013, MNRAS, 432, 1424
Kuijken, K., Gilmore, G., 1989, MNRAS, 239, 651
Lada, E., 1992, ApJ, 393, L25
Ladd, E. F., Myers, P. C., Goodman, A. A., 1994, ApJ, 433, 117
Lee, D.-H., Yuk, I.-S., Jin, K., et al. 2006, ApJ 644, L181
Leger, A., Puget, J.L., 1984, A&A, 137, L5
Lombardi, N., 2009, A&A, 493, 735
Lombardi, N., Lada, C.J., Alves, J., 2010, A&Ap , 512, 67
Mirabel, I. F. 1982, ApJ, 256, 112
Moneti, A., Pipher, J.L., Helfer, H.L. et al., 1984, ApJ, 282, 508
Morrissey, P., Conrow, T., Barlow, T. A., et al. 2007, ApJ, 173, 697
Myers, P.C., Benson, P.J., 1983, ApJ, 266, 309
Nakano, T., 1998, ApJ, 494, 587
Ojha, D.K. 2001, MNRAS, 322, 426
Olano, C.A., Walmsley, C.M., Tisley, T.L., 1988, A&Ap, 196, 1940
Pilipp, W., Morfill, G.E., Harquist, T.W. et al., 1987, ApJ, 314, 341
Robin, A. C., Reyle, C., Derriere, S., et al. 2003, A&A, 409, 523
Siess, L., Dufour, E., Forestini, M., 2000, A&A, 358, 593
Steglich, M., Jger, CX., Rouill´e, G., et al. 2010, ApJ, 712, L16
Steglich, M., Bouwman, J., Huisken, F., 2011, ApJ, 742, 2
Strutskie, M.F., Cutri, R.M., Stiening, R., et al. 2006, AJ, 131, 1163
Ungerechts, H., Thaddeus, P., 1987, ApJSS, 63, 645
Vrba, F.J., Strom, S.E., Strom, K.M., AJ , 81, 958
van Rhijn, P.J., 1929, Publications of the Kapteyn Astronomical Laboratory Groningen, 43, 1
Wada, S., Kaito, C., Kimura, S. et al. 1999, A&A, 345, 259
Wang, J.-J., Chen, W.-P., Miller, M. et al, ApJ, 614 L105
Weingartner, J.C., Draine, B.T., 2001, ApJ, 553, 581
Wolf, M. 1923, Astronomische Nachrichten 219, 109
Ysard, N., Abergel, A., Ristorcelli, I., et al. 2013, A&A, 559, 133
Yuan, H.B., Liu, X.W., Xiang, M.S., 2013, MNRAS, 430, 2188
Zacharias, N., Finch, C. T., Girard, T. M., et al. 2013, AJ, 145, 44