Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published January 20, 2001 | Submitted + Published
Journal Article Open

Periodic Photometric Variability in the Becklin-Neugebauer Object


The Becklin-Neugebauer object (BN) in the Orion Nebula cluster is a well-studied, optically invisible, infrared-bright young stellar object that is thought to be an intermediate-mass protostar. We report here that BN exhibited nearly sinusoidal periodic variability at the near-infrared H and K_s bands during a 1 month observing campaign in 2000 March/April. The period was 8.28 days, and the peak-to-peak amplitude was ~0.2 mag. Plausible mechanisms for producing the observed variability characteristics are explored.

Additional Information

© 2001 The American Astronomical Society. Received 2000 September 1; accepted 2000 November 1; published 2001 January 18. This publication made use of data products from 2MASS, which is funded by NASA and the NSF and is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center at Caltech. Science data and information services were provided by IRSA at IPAC. The authors would like to thank the 2MASS Observatory Staff and Data Management Team for acquiring and pipeline-processing the special survey observations used in this investigation. We thank Nick Scoville, Bill Herbst, Michael Meyer, and Roc Cutri for comments on drafts of this manuscript. We also thank Gerry Neugebauer for communicating previously unpublished data.

Attached Files

Published - Hillenbrand_2001_ApJ_547_L53.pdf

Submitted - 0010471.pdf


Files (157.8 kB)
Name Size Download all
100.3 kB Preview Download
57.5 kB Preview Download

Additional details

August 19, 2023
October 25, 2023