Publication: Evidence of non-thermal x-ray emission from HH 80
Loading...
Official URL
Full text at PDC
Publication Date
2013-10-20
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing
Citations
Exportar
Abstract
Protostellar jets appear at all stages of star formation when the accretion process is still at work. Jets travel at velocities of hundreds of km s^-1, creating strong shocks when interacting with the interstellar medium. Several cases of jets have been detected in X-rays, typically showing soft emission. For the first time, we report evidence of hard X-ray emission possibly related to non-thermal processes not explained by previous models of the post-shock emission predicted in the jet/ambient interaction scenario. HH 80 is located at the south head of the jet associated with the massive protostar IRAS 18162-2048. It shows soft and hard X-ray emission in regions that are spatially separated, with the soft X-ray emission region situated behind the region of hard X-ray emission. We propose a scenario for HH 80 where soft X-ray emission is associated with thermal processes from the interaction of the jet with denser ambient matter and hard X-ray emission is produced by synchrotron radiation at the front shock.
Description
© 2013. The American Astronomical Society.
This work was supported by the Spanish Government (AYA2011-29754-C03-01 and AYA2011-29754-C03-03). C. S. P. was supported by the COSPAR Capacity Building Workshop Fellowship Program and the Universidad Nacional de La Plata to develop this work at the Universidad Complutense de Madrid. M. M. is supported through the ASI-INAF contract I/009/10/0. JFAC is a staff researcher of the CONICET and acknowledges support by grant PIP 2011 0100285. J.L.-S. would like to thank Drs. F. J. Carrera, P. G. Pérez González and S. Mateos for fruitful discussion on the spectral X-ray emission properties of AGN. We also acknowledges the referee of this manuscript for their suggestions and comments. Facilities: XMM-Newton (EPIC), Chandra (ACIS), Spitzer (IRAC, MIPS).
UCM subjects
Unesco subjects
Keywords
Citation
Araudo, A. T., & Rodríguez, L. F. 2012, in AIP Conf. Ser. 1505, High Energy Gamma-Ray Astronomy, ed. F. A. Aharonian, W. Hofmann, & F. M. Rieger (Melville, NY: AIP), 281
Bally, J., Feigelson, E., & Reipurth, B. 2003, ApJ, 584, 843
Bonito, R., Fridlund, C. V. M., Favata, F., et al. 2008, A&A, 484, 389
Bonito, R., Orlando, S., Miceli, M., et al. 2010a, A&A, 517, A68
Bonito, R., Orlando, S., Miceli, M., et al. 2011, ApJ, 737, 54
Bonito, R., Orlando, S., Peres, G., Favata, F., & Rosner, R. 2004, A&A, 424, L1
Bonito, R., Orlando, S., Peres, G., Favata, F., & Rosner, R. 2007, A&A, 462, 645
Bonito, R., Orlando, S., Peres, G., et al. 2010b, A&A, 511, A42
Bosch Ramón, V., Romero, G. E., Araudo, A. T., & Paredes, J. M. 2010, A&A, 511, A8
Carrasco González, C., Rodríguez, L. F., Anglada, G., et al. 2010, Sci, 330, 1209
Coffey, D., Rigliaco, E., Bacciotti, F., Ray, T. P., & Eislöffel, J. 2012, ApJ, 749, 139
Combi, J. A., Albacete Colombo, J. F., Pellizza, L., et al. 2011, Ap&SS, 331, 53
Della Ceca, R., Maccacaro, T., Caccianiga, A., et al. 2004, A&A, 428, 383
Favata, F., Bonito, R., Micela, G., et al. 2006, A&A, 450, L17
Favata, F., Fridlund, C. V. M., Micela, G., Sciortino, S., & Kaas, A. A. 2002, A&A, 386, 204
Ginzburg, V. L., & Syrovatskii, S. I. 1964, The Origin of Cosmic Rays (New York: Macmillan)
Gómez de Castro, A. I., & Verdugo, E. 2001, ApJ, 548, 976
Gómez de Castro, A. I., & von Rekowski, B. 2011, MNRAS, 411, 849
Grosso, N., Feigelson, E. D., Getman, K. V., et al. 2006, A&A, 448, L29
Güdel, M., Skinner, S. L., Audard, M., Briggs, K. R., & Cabrit, S. 2008, A&A, 478, 797
Heathcote, S., Reipurth, B., & Raga, A. C. 1998, AJ, 116, 1940
Hollis, J. M., Oliversen, R. J., Michalitsianos, A. G., Kafatos, M., & Wagner, R. M. 1991, ApJ, 377, 227
Kastner, J. H., Franz, G., Grosso, N., et al. 2005, ApJS, 160, 511
Li, J., Kastner, J. H., Prigozhin, G. Y., et al. 2004, ApJ, 610, 1204
Liseau, R., Huldtgren, M., Fridlund, C. V. M., & Cameron, M. 1996, A&A, 306, 255
López García, M. A., López Santiago, J., Albacete Colombo, J. F., Pérez González, P. G., & de Castro, E. 2013, MNRAS, 429, 775
Martí, J., Rodríguez, L. F., & Reipurth, B. 1993, ApJ, 416, 208
Masqué, J. M., Girart, J. M., Estalella, R., Rodríguez, L. F., & Beltran, M. T. 2012, ApJ, 758, L10
Ortolani, S., & Dodorico, S. 1980, A&A, 83, L8
Pravdo, S. H., Feigelson, E. D., Garmire, G., et al. 2001, Natur, 413, 708
Pravdo, S. H., Tsuboi, Y., & Maeda, Y. 2004, ApJ, 605, 259
Reipurth, B., & Bally, J. 2001, ARA&A, 39, 403
Rodríguez, L. F., Garay, G., Brooks, K. J., & Mardones, D. 2005, ApJ, 626, 953
Rodríguez, L. F., & Reipurth, B. 1989, RMxAA, 17, 59
Schneider, P. C., Eislöffel, J., Güdel, M., et al. 2013, A&A, 550, L1
Strüder, L., Briel, U., Dennerl, K., et al. 2001, A&A, 365, L18
Tsujimoto, M., Koyama, K., Kobayashi, N., et al. 2004, PASJ, 56, 341
Turner, M. J. L., Abbey, A., Arnaud, M., et al. 2001, A&A, 365, L27