dc.contributor.author | Riaz, B. | |
dc.contributor.author | Martin, E. L. | |
dc.contributor.author | Bouy, H. | |
dc.contributor.author | Tata, R. | |
dc.date.accessioned | 2011-12-14T17:01:14Z | |
dc.date.available | 2011-12-14T17:01:14Z | |
dc.date.issued | 2009-08-01 | |
dc.identifier.citation | Riaz , B , Martin , E L , Bouy , H & Tata , R 2009 , ' 2MASS J17112318-2724315: A DEEPLY EMBEDDED LOW-MASS PROTOSTELLAR SYSTEM IN THE B59 MOLECULAR CLOUD ' , The Astrophysical Journal , vol. 700 , no. 2 , pp. 1541-1551 . https://doi.org/10.1088/0004-637X/700/2/1541 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | PURE: 496978 | |
dc.identifier.other | PURE UUID: 7891db43-698c-4fa2-9d72-32db4d4483e2 | |
dc.identifier.other | WOS: 000268098100051 | |
dc.identifier.other | Scopus: 70449786951 | |
dc.identifier.uri | http://hdl.handle.net/2299/7291 | |
dc.description.abstract | We present near-infrared observations of the low-mass deeply embedded Class 0/I system 2MASS J17112318-2724315 (2M171123) in the B59 molecular cloud. Bright scattered light nebulosity is observed toward this source in the K-S images, that seems to trace the edges of an outflow cavity. We report the detection of a low-luminosity protostar 2M17112255-27243448 (2M17112255) that lies similar to 8 '' (similar to 1000 AU) from 2M171123. This is a Class I system, as indicated by its 2-8 mu m slope and Infrared Array Camera colors, with an estimated internal luminosity of similar to 0.3 L-circle dot. We estimate a mass of similar to 0.12-0.25 M-circle dot for this source, at an age of 0.1-1 Myr. Also presented is detailed modeling of the 2M171123 system. The best-fit parameters indicate a large envelope density of the order of similar to 10(-13) g cm(-3), and an intermediate inclination between 53 degrees and 59 degrees. The observed K-S-band variability for this system could be explained by slight variability in the mass infall rate between 2.5E-5 and 1.8E-5 M-circle dot yr(-1). The protostar 2M171123 exhibits a rarely observed absorption feature near 11.3 mu m within its 10 mu m silicate band. We find a strong correlation between the strength in this 11.3 mu m "edge" and the H2O-ice column density, indicating the origin of this feature in the thickness of the ice mantle over the silicate grains. | en |
dc.format.extent | 11 | |
dc.language.iso | eng | |
dc.relation.ispartof | The Astrophysical Journal | |
dc.subject | circumstellar matter | |
dc.subject | ISM: abundances | |
dc.subject | ISM: jets and outflows | |
dc.subject | open clusters and associations: individual (Taurus, Upper Scorpius) | |
dc.subject | stars: individual (2MASS J17112318-2724315) | |
dc.subject | stars: pre-main sequence | |
dc.subject | YOUNG STELLAR OBJECTS | |
dc.subject | SILICATE DUST | |
dc.subject | PIPE NEBULA | |
dc.subject | STARS | |
dc.subject | ICES | |
dc.subject | SPECTROSCOPY | |
dc.subject | PROTOSTARS | |
dc.subject | TAURUS | |
dc.subject | CORES | |
dc.subject | ENVELOPES | |
dc.title | 2MASS J17112318-2724315: A DEEPLY EMBEDDED LOW-MASS PROTOSTELLAR SYSTEM IN THE B59 MOLECULAR CLOUD | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | https://doi.org/10.1088/0004-637X/700/2/1541 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |