Letter to the Editor

A new radial system of dark globules in Monoceros

¹ Instituto de Astrofísica de Andalucía, CSIC, Camino Bajo de Huétor 50, 18008 Granada, Spain e-mail: [charly;guillem]@iaa.es
² Departament d'Astronomia i Meteorologia, Universitat de Barcelona, Av. Diagonal 647, 08028 Barcelona, Spain e-mail: rosario@am.ub.es
³ Byurakan Astrophysical Observatory, Aragatsotn prov. 378433, Armenia e-mail: agyulb@bao.sci.am
⁴ Korea Astronomy & Space Science Institute, 61-1 Hwaam-dong, Yusung-gu, Taejeon 305-348, Korea e-mail: cwl@kasi.re.kr

Received: 5 October 2005
Accepted: 23 November 2005

Abstract

Context.

Aims.We analyze the LBN 978 HII region in order to study the HII/molecular cloud interaction.

Methods.We used the IAC-80 telescope to image the region with narrow-band filters and the Very Large Array to obtain a radio continuum map at 3.6 cm. We also used the DSS2 red images and the NRAO VLA Sky Survey at 20 cm.

Results.We have discovered a new radial system of dark globules associated with the LBN 978 HII region, containing a group of at least eight cometary bright-rimmed globules with the same morphological type. The brightest source is also detected in the radio continuum. Analysis of optical and radio emission suggest that this object is photoionized by HD 47432, the central star of the LBN 978 HII region.

Conclusions.