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VLT/X-shooter Spectroscopy of a dusty planetary nebula discovered with Spitzer/IRS

Oliveira, I. and Overzier, R. A. and Pontoppidan, K. M. and van Dishoeck, E. F. and Spezzi, L. (2011) VLT/X-shooter Spectroscopy of a dusty planetary nebula discovered with Spitzer/IRS. Astronomy and Astrophysics, 526 . Art. No. A41. ISSN 0004-6361.

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As part of a mid-infrared spectroscopic survey of young stars with the Spitzer Space Telescope, an unclassified red emission line object was discovered. Based on its high ionization state indicated by the Spitzer spectrum, this object could either be a dusty supernova remnant (SNR) or a planetary nebula (PN). In this research note, the object is classified and the available spectroscopic data are presented to the community for further analysis. UV/optical/NIR spectra were obtained during the science verification run of the VLT/X-shooter. A large number of emission lines are identified allowing the determination of the nature of this object. The presence of strong, narrow (Δv ~8 – 74 km s^(−1)) emission lines, combined with very low line ratios of, e.g., [N_(II)]/Hα and [S_(II)]/Hα show that the object is a PN that lies at an undetermined distance behind the Serpens Molecular Cloud. This illustrates the potential of X-shooter as an efficient tool for constraining the nature of faint sources with unknown spectral properties or colors.

Item Type:Article
Related URLs:
URLURL TypeDescription
Pontoppidan, K. M.0000-0001-7552-1562
van Dishoeck, E. F.0000-0001-7591-1907
Additional Information:© 2010 ESO. Received 19 August 2010, Accepted 26 November 2010, Published online 20 December 2010. Astrochemistry at Leiden is supported by a Spinoza grant from the Netherlands Organization for Scientific Research (NWO) and by the Netherlands Research School for Astronomy (NOVA) grants. The authors would like to express their gratitude to Bram Venemans and Brent Groves for help with the X-Shooter data reduction and electron densities, respectively.
Funding AgencyGrant Number
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)UNSPECIFIED
Nederlandse Onderzoekschool voor de Astronomie (NOVA)UNSPECIFIED
Subject Keywords:planetary nebulae: general – line: identification
Record Number:CaltechAUTHORS:20110222-132829677
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Official Citation:VLT/X-shooter Spectroscopy of a dusty planetary nebula discovered with Spitzer/IRS I. Oliveira, R. A. Overzier, K. M. Pontoppidan, E. F. van Dishoeck and L. Spezzi A&A 526 A41 (2011) DOI: 10.1051/0004-6361/201015612
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22426
Deposited By: Benjamin Perez
Deposited On:22 Feb 2011 21:53
Last Modified:03 Oct 2019 02:37

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