Nebulous objects in the Southern Hemisphere

Revista mexicana de astronomía y astrofísica, Feb 2019

We have inspected plates of the Southern Hemisphere with the purpose of finding previously unreported nebulous objects. We found 93 objects, of which 62 are associated with IRAS point sources. Some of these objects look like Herbig-Haro objects, while others are cometary nebulae, tight groups of red dwarf stars, and objects resembling small regions of star formation.

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Nebulous objects in the Southern Hemisphere

Nebulous objects in the Southern Hemisphere   A. L. Gyulbudaghian,1 J. May,2 L. González,2 and R. A. Méndez3   1 Byurakan Astrophysical Observatory, 378433 Byurakan, Aragatsotn Province, Armenia; (). 2 Department of Astronomy, Universidad de Chile, Casilla 36-D, Santiago, Chile; (; ). 3 European Southern Observatory, ESO-Chile, Casilla 19001, Santiago-19, Chile; ().   Received 2003 September 26 Accepted 2004 March 30.   ABSTRACT We have inspected plates of the Southern Hemisphere with the purpose of finding previously unreported nebulous objects. We found 93 objects, of which 62 are associated with IRAS point sources. Some of these objects look like Herbig-Haro objects, while others are cometary nebulae, tight groups of red dwarf stars, and objects resembling small regions of star formation. Key Words: ISM: HII regions — ISM: Herbig-Haro Objects — Stars: Early-Type — Stars: Flare — Stars: Formation — Surveys   RESUMEN Hemos realizado una inspección de las placas del Hemisferio Sur con el propósito de buscar objetos nebulosos no reportados con anterioridad. Se encontraron 93 objetos, de los cuales 62 están asociados con fuentes puntuales del IRAS. Algunos de estos objetos son similares a objetos Herbig-Haro, mientras que otros son glóbulos cometarios, grupos compactos de estrellas rojas enanas y objetos que semejan pequeñas regiones de estrellas en formación.   DESCARGAR ARTÍCULO EN FORMATO PDF   ACKNOWLEDGEMENTS A.L.G. is indebted to the staffs of the Department of Astronomy at Universidad de Chile and ESO-Chile for hospitality and help during his stay in Chile (March-April 2002). J.M. acknowledges the support from FONDECYT (Chile) grant # 1010431 and from the Chilean Centro de Astrofisica FON-DAP # 15010003. R.A.M. acknowledges an ESO-Visiting grant on behalf of A.L.G. The authors are indebted to an anonymous referee for several useful comments.   REFERENCES Ambartsumian, V. A. 1954, Soobshch. Byurakanskoy Obs., 15, 3        [ Links ] Brand, J., Blitz, L., & Wouterloot, J. 1986, A & AS, 65, 537        [ Links ] Croswell, K., Hartmann, L., & Avrett, E. H. 1987, ApJ, 312, 227        [ Links ] Gyulbudaghian, A. L. 1995, Afz, 38, 17        [ Links ] ----------. 1998, Afz, 41, 585        [ Links ] Gyulbudaghian, A. L., Glushkov, Yu. I., & Denisyuk, E. K. 1978, ApJ, 224, L137        [ Links ] Gyulbudaghian, A. L., Rodriguez, L. F., Villanueva, V. M. 1993, RevMexAA, 25, 19        [ Links ] Reipurth, B. 1983, A & A, 117, 183        [ Links ] Rodriguez, L. F., Moran, J. M., Ho, P., & Gottlieb, E. W. 1980, ApJ, 235, 845         [ Links ] Staude, H. J., & Neckel, Th. 1991, A & A, 244, L13        [ Links ]


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A. L. Gyulbudaghian, J. May, L. González, R. A. Méndez. Nebulous objects in the Southern Hemisphere, Revista mexicana de astronomía y astrofísica, 137-146,