Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aj.....95.1167p&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 95, April 1988, p. 1167-1172.
Astronomy and Astrophysics
Astronomy
23
Herbig-Haro Objects, Infrared Astronomy Satellite, Nebulae, Stellar Envelopes, Stellar Evolution, T Tauri Stars, Charge Coupled Devices, Flux Density, Infrared Photometry, Protostars
Scientific paper
The IRAS Survey has been used to search 22 nebulosities resembling Herbig-Haro objects for evidence of newly forming stars. Half the peculiar nebulae are found to have associated IRAS sources. From a study of the energy distributions, obtained from JHKL photometry and IRAS flux densities, the physical characteristics of the sources have been derived. The IRAS sources 04073 + 3800(GY 10), 05173-0555(GY 14), and 05439 + 3035(GY 18) have been identified as possible low-mass protostars, while the sources 03134 + 5958(GY 5) and 21004 + 7811(GY 21) are T Tauri stars with nebular disks and surrounding dust envelopes of residual infall. Finally, the IRAS source 04591-0856, associated with the nebula GY 13, could be in an evolutionary stage intermediate between a protostar in the pure infall phase and that of an obscured T Tauri.
Busso Maurizio
Ferrari-Toniolo Marco
Persi Paolo
Robberto Massimo
Scaltriti Franco
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