Issue |
A&A
Volume 525, January 2011
|
|
---|---|---|
Article Number | A58 | |
Number of page(s) | 11 | |
Section | Interstellar and circumstellar matter | |
DOI | https://doi.org/10.1051/0004-6361/201014464 | |
Published online | 01 December 2010 |
IPHAS extinction distances to planetary nebulae
1
Instituto de Astrofísica de Canarias (IAC), C/ vía Láctea s/n, 38200
La Laguna, Spain
e-mail: corrado@iac.es
2
Astrophysics Group, Imperial College London, Blackett
Laboratory, Prince Consort
Road, London
SW7 2AZ,
UK
3
Department of Physics and Astronomy, University College
London, Gower
Street, London
WC1E 6BT,
UK
4
Instituto de Astronomía, Universidad Nacional Autónoma de
México, Apdo. Postal
877, 22800
Ensenada, B.C., Mexico
5
Isaac Newton Group of Telescopes, Ap. de Correos 321, 38700
Sta. Cruz de la Palma,
Spain
6 Department of Physics, Macquarie
University, NSW
2109, Australia
7
Institut für Physik, Karl-Franzens Universität Graz,
Universitätsplatz 5, 8010
Graz,
Austria
8
Astrophysics Group, Department of Physics, Bristol
University, Tyndall
Avenue, Bristol
BS8 1TL,
UK
9
Jodrell Bank Centre for Astrophysics, School of Physics and
Astronomy, University of Manchester, Oxford Road, M13 9 PL Manchester, UK
10
Centre for Astrophysics Research, STRI, University of
Hertfordshire, College Lane
Campus, Hatfield
AL10 9AB,
UK
11
Anglo-Australian Observatory, PO Box 296, Epping, NSW
1710,
Australia
12
Departamento de Astrofísica, Universidad de La
Laguna, 38205 La
Laguna, Tenerife,
Spain
13
Centro Astronómico Hispano Alemán, Calar Alto,
C/Jesús Durbán Remón 2-2,
04004
Almeria,
Spain
14
Centro de Estudios de Física del Cosmos de Aragón
(CEFCA), C/General Pizarro
1-1, 44001
Teruel,
Spain
Received:
19
March
2010
Accepted:
3
July
2010
Aims. The determination of reliable distances to planetary nebulae (PNe) is a major difficulty in the study of this class of objects in the Galaxy. The availability of new photometric surveys such as IPHAS (the INT/WFC photometric Hα survey of the northern Galactic plane) covering large portions of the sky provide an opportunity to apply the so-called extinction method to determine the distances of a large number of objects.
Methods. The technique is applied to a sample of 137 PNe located between −5 and 5 degrees in Galactic latitude, and between 29.52 and 215.49 degrees in longitude. The characteristics of the distance-extinction method and the main sources of errors are carefully discussed.
Results. The data on the extinction of the PNe available in the literature, complemented by new observations, allow us to determine extinction distances for 70 PNe. A comparison with statistical distance scales from different authors is presented.
Key words: catalogs / planetary nebulae: general
© ESO, 2010
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