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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/007/03/0237-0240

    • Keywords

       

      infrared sources—Herbig-Haro objects—stars; proper motion—stars; variability

    • Abstract

       

      The source IRAS 03134 + 5958 identified by Iyengar & Verma (1984) on the Palomar Observatory Sky Survey (POSS) prints with a nonstellar optical object with [P – R]≃ 5.3 ± 1.5 is near the edge of Lynds dark cloud No. 1384 and is either embedded in or behind the cloud. The galactic latitude of this source (bII = 2‡.3), its positionvis-a-vis the Lynds dark cloud, its nonstellar appearance, high [P – R] colour and its far-infrared spectrum, all suggest the possibility of its being a Herbig-Haro (HH) object. To test this possibility we undertook measurements of its proper motion and variability (two of the characteristic properties of HH objects). These yield μa = (3.6 ± 2.3) arcsec/century and μδ= (−1.2 ± 2.0) arcsec/century for its proper motion. The source reveals large variation in brightness between 1950 and 1954. Optical line studies of the source are required to confirm its classification as an HH object.

    • Author Affiliations

       

      K. V. K. Iyengar1 T. N. Rengarajan1

      1. Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay - 400005
    • Dates

       
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