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Torres, M. A. P.; Garcia, M. R.; Steeghs, D.; McClintock, Jeffrey E. (2005)
Publisher: Institute of Physics Publishing Ltd.
Languages: English
Types: Article
Subjects: QB
We present spectroscopy of the optical counterpart to 1RXS J162848.1-41524, also known as the microquasar candidate MCQC J162847-4152. All the data indicate that this X-ray source is not a microquasar and that it is a single-lined chromospherically active binary system with a likely orbital period of 4.9 days. Our analysis supports a K3 IV spectral classification for the star, which is dominant at optical wavelengths. The unseen binary component is most likely a late-type (K7-M) dwarf or a white dwarf. Using the high-resolution spectra, we have measured the K3 star's rotational broadening to be v sin i = 43 ± 3 km s-1 and determined a lower limit to the binary mass ratio of q(= M2/M1) > 2.0. The high rotational broadening together with the strong Ca II H and K/Hα emission and high-amplitude photometric variations indicate that the evolved star is very chromospherically active and responsible for the X-ray/radio emission.
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    • Baliunas S. L., Dupree A. K. 1982, ApJ, 252, 668 Benz A. O. & Gu¨del M. 1994, A&A, 285, 621 Bernstein R., Shectman S. A, Gunnels S. M., Mochnacki S., Athey A. E. 2003, SPIE, 4841, 1694
    • Bigelow B. C., Dressler A. 2003, Proc. SPIE, 4841, 1727 Bohlin R. C., Savage B. D., Drake J. F. 1978, ApJ, 224, 132 Bopp B. W., Stencel R. E. 1981, ApJL, 247, 131 Bopp B. W., Goodrich B. D., Africano J. L., Noah P. V., Meredith R. J., Palmer L. H., Quigley R. J. 1984, 285, 202
    • Bopp B. W., Fekel F. C., Aufdenberg J. P., Dempsey R. 1993, AJ, 106, 2502 Buxton M., Bailyn C., Berdnikov L., Tsarevsky G. 2004, ATEL # 234. Casares J., Charles P. A, Naylor T., Pavlenko E. P. 1993, MNRAS, 265, 834 Chiu H. Y., Adams P. J., Linsky J. L., Basri G. S., Maran S. P., Hobbs R. W. 1977, ApJ, 211, 453
    • Collins G. W. I., Truax R. J. 1995, ApJ, 439, 860 Condon J. J., Cotton W. D., Greisen E. W., Yin Q. F., Perley R. A., Taylor, G. B., Broderick J. J. 1998, AJ, 115, 1693
    • Dempsey R. C., Linsky J. L., Fleming T. A., Schmitt J. H. M. M. 1993, ApJS, 86, 599 Dickey J. M. Lockman F. J. 1990, ARA&A, 28, 215 Drake S. A., Simon T., Linsky J. L. 1992, ApJSS, 82, 311 Drake S. A., Simon T., Linsky J. L. 1989, ApJSS, 71, 905 Dupree A. K. 1986, ARA&A, 24, 377 Efremov Y. N, 1975, Pulsating Stars, Wiley and Sons, p. 42 R. V. Kukorkin, editor Fender R. P. 2004a, in Compact Stellar X-Ray Sources, ed. W. H. G. Lewin & M. van der Klis (Cambridge: Cambridge University Press), in press (astro-ph/0303339) Fender R. P. 2004b, NewAR, 48, 1399 Gallo E., Fender R. P., Pooley G. G. 2003, MNRAS, 344, 60 Gallo E., Fender R. P., Hynes R. I. 2005, MNRAS, 356, 1017 Garcia M. R., Miller J. M., McClintock J. E., King A. R., Orosz J. 2003, ApJ, 591, 388 Garc´ıa L´opez R. J., Crivellari L., Beckman J. E., Rebolo R. 1992, A&A, 262, 195 Graffagnino V. G., Wonnacott D., Schaeidt S. 1995, MNRAS, 275, 129 Gray D. F. 1992, The Observation and Analysis of Stellar Photospheres. Cambridge University Press, Cambridge
    • Jasniewicz G., Parthasarathy M., de Laverny P., Th´evenin F. 1999, A&A, 342, 831 Jenniskens P., D´esert F.-X. 1994, A&A, 106, 39 Kraft R. P. 1966, ApJ, 144, 1008 Lampton M., Margon B., Bowyer S. 1976, ApJ, 208, 177 Lang K. R. 1992, Astrophysical Data, Springer-Verlag Linsky J. L. 1980, ARA&A, 18, 439 Marsh T. R., Robinson E. L., Wood J. H. 1994, MNRAS, 266, 137 Mart´ı J., Paredes J. M., Bloom J. S., Casares J., Rib´o M., Falco E. E. 2004a, A&A, 413, 309 Mart´ı J., Paredes J. M., Garrido J. L., Luque-Escamilla P. 2004b, A&A, 423, 1073 Martini P., Ho L. C. 2004, ApJ, 610, 233 Mirabel I. F., Rodr´ıguez L. F. 1999, ARA&A, 37, 409 Montes D., Sanz-Forcada J., Fernandez-Figueroa M. J., de Castro, E., Poncet A. 1998, A&A, 330, 155
    • Montes D., Fernandez-Figueroa M. J., de Castro, E., Cornide M. 1994, A&A, 285, 609 Paredes J. M. 2005, in AIP Conf. Proc. 745, High Energy Gamma-ray Astronomy, eds. F. A. Aharonian, H. J. Voelk & D. Horns., 93 (), astro-ph/0501576 Pierce A. K., Breckinridge J. B. 1973, The Kitt Peak Table of Photographic Solar Spectrum Wavelengths, Kitt Peak Contr. No. 559
    • Popper D. M. 1980, ARA&A, 18, 115 Popper D. M., Ulrich R. K. 1972, ApJL, 212, 131 Rebolo R., Garc´ıa L´opez R., Beckman J. E., Vladilo G., Foing B. H., Crivellari L. 1989, A&ASS, 80, 135
    • Robinson R. D., Cram L. E. 1990, ApJ, 74, 891 Rupen M. P., Dhawan V., Mioduszewski A. J. 2004, IAU Circ. 8275 Rupen M. P., Dhawan V., Mioduszewski A. J. 2002, IAU Circ. 796 Slee O. B., Tsarevsky, G. S., Sault, R. J., Rupen, M. P., Dwahan, V.; Mioduszewski, A. J. 2002, IAU Circ. 8008
    • Slee O. B., Nelson G. J., Stewart R. T., Wright A. E. 1987, MNRAS, 229, 659 Stencel R. E. 1978, ApJL, 223, 37 Strassmeier K. G., Fekel F. C. 1990, A&A, 230, 389 Strassmeier K. G., Hall S. S., Fekel F. C., Scheck M. 1993, A&ASS, 100, 173 Strassmeier K. G., Schordan P. 2000, AN, 321, 277 Tassoul J.-L., Tassoul M. 1992, ApJ, 395, 259 Thatcher J. D., Robinson R. D. 1993, MNRAS, 262, 1 Tonry J., Davis M. 1979, AJ, 84, 1511 Torres M. A. P., Casares J., Mart´ınez-Pais I. G., Charles P. A. 2002, MNRAS, 334, 233 Torres M. A. P., Garcia M. R., Steeghs D., McClintock J. E., Bloom J. S. 2004a, ATEL# 292
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    On the binary nature of 1RXS J162848.1-415241


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