A Disk Shadow around the Young Star ASR 41 in NGC 1333

Klaus W Hodapp, Christina H Walker, Bo Reipurth, Kenneth Wood, John Bally, Barbara A Whitney, Michael Connelley

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

We present images of the young stellar object ASR 41 in the NGC 1333 star-forming region at the wavelengths of Ha and [S II] and in the I, J, H, and K bands. ASR 41 has the near-infrared morphology of an edge-on disk object but appears an order of magnitude larger than typical systems of this kind. We also present detailed models of the scattering and radiative transfer in systems consisting of a young star surrounded by a protoplanetary disk and the whole system being embedded in either an infalling envelope or a uniform molecular cloud. The best fit to the observed morphology can be achieved with a disk of approximate to200 AU diameter, immersed in a low-density cloud (approximate to2 x 10(-20) g cm(-3)). The low cloud density is necessary to stay below the submillimeter flux upper limits and to preserve the shadow cast by the disk via single scattering. The results demonstrate that ASR 41 is probably not inherently different from typical edge-on disk objects and that its large apparent size is due to the shadow of a much smaller disk being projected into the surrounding dusty molecular material.

Original languageEnglish
Pages (from-to)L79-L82
Number of pages4
JournalAstrophysical Journal
Volume601
Issue number1
Publication statusPublished - 20 Jan 2004

Keywords

  • infrared : ISM
  • reflection nebulae
  • stars : formation
  • stars : pre-main-sequence
  • MODEL SCATTERING ENVELOPES
  • CIRCUMSTELLAR DISKS
  • STELLAR OBJECTS
  • PROTOSTELLAR ENVELOPES
  • DARK CLOUD
  • TELESCOPE
  • TAURI

Fingerprint

Dive into the research topics of 'A Disk Shadow around the Young Star ASR 41 in NGC 1333'. Together they form a unique fingerprint.

Cite this