Looking for blazars in a sample of unidentified high-energy emitting Fermi sources: preliminary results

It is expected that a large fraction of the unidentified sources detected at γ-rays are blazars. Through cross–correlation between the positions of unidentified objects from the 1FHL Fermi catalogue of γ-ray sources and the ROSAT, XMM Slew and Swift/XRT catalogues of X–ray objects, a sample of 38 as...

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Autores principales: Marchesini, Ezequiel Joaquín, Masetti, Nicola, Cellone, Sergio Aldo, Andruchow, Ileana, Bazzano, Angela, Landi, Raffaella, Malizia, Angela, Palazzi, Eliana, Stephen, John B., Ubertini, Pietro
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Astronómicas
unidentified sources
blazars
1FHL Fermi catalogue
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/168109
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-168109
record_format dspace
spelling I19-R120-10915-1681092024-07-29T20:02:19Z http://sedici.unlp.edu.ar/handle/10915/168109 Looking for blazars in a sample of unidentified high-energy emitting Fermi sources: preliminary results Marchesini, Ezequiel Joaquín Masetti, Nicola Cellone, Sergio Aldo Andruchow, Ileana Bazzano, Angela Landi, Raffaella Malizia, Angela Palazzi, Eliana Stephen, John B. Ubertini, Pietro 2015-10 2016 2024-07-29T15:08:40Z en Ciencias Astronómicas unidentified sources blazars 1FHL Fermi catalogue It is expected that a large fraction of the unidentified sources detected at γ-rays are blazars. Through cross–correlation between the positions of unidentified objects from the 1FHL Fermi catalogue of γ-ray sources and the ROSAT, XMM Slew and Swift/XRT catalogues of X–ray objects, a sample of 38 associations was found with less than 10 arcsec of positional error. One third of them has recently been classified; the remainder, though believed to belong to the blazar class, has not yet been identified. Therefore, we aim at studying the optical spectra of the counterparts of these unidentified sources in order to find their redshifts and to analyse their nature and main spectral features. We present here our preliminary results from optical spectroscopic observations at the 3.58m Telescopio Nazionale Galileo (TNG) for 7 of them. Facultad de Ciencias Astronómicas y Geofísicas Instituto de Astrofísica de La Plata Objeto de conferencia Objeto de conferencia http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 159-162
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
unidentified sources
blazars
1FHL Fermi catalogue
spellingShingle Ciencias Astronómicas
unidentified sources
blazars
1FHL Fermi catalogue
Marchesini, Ezequiel Joaquín
Masetti, Nicola
Cellone, Sergio Aldo
Andruchow, Ileana
Bazzano, Angela
Landi, Raffaella
Malizia, Angela
Palazzi, Eliana
Stephen, John B.
Ubertini, Pietro
Looking for blazars in a sample of unidentified high-energy emitting Fermi sources: preliminary results
topic_facet Ciencias Astronómicas
unidentified sources
blazars
1FHL Fermi catalogue
description It is expected that a large fraction of the unidentified sources detected at γ-rays are blazars. Through cross–correlation between the positions of unidentified objects from the 1FHL Fermi catalogue of γ-ray sources and the ROSAT, XMM Slew and Swift/XRT catalogues of X–ray objects, a sample of 38 associations was found with less than 10 arcsec of positional error. One third of them has recently been classified; the remainder, though believed to belong to the blazar class, has not yet been identified. Therefore, we aim at studying the optical spectra of the counterparts of these unidentified sources in order to find their redshifts and to analyse their nature and main spectral features. We present here our preliminary results from optical spectroscopic observations at the 3.58m Telescopio Nazionale Galileo (TNG) for 7 of them.
format Objeto de conferencia
Objeto de conferencia
author Marchesini, Ezequiel Joaquín
Masetti, Nicola
Cellone, Sergio Aldo
Andruchow, Ileana
Bazzano, Angela
Landi, Raffaella
Malizia, Angela
Palazzi, Eliana
Stephen, John B.
Ubertini, Pietro
author_facet Marchesini, Ezequiel Joaquín
Masetti, Nicola
Cellone, Sergio Aldo
Andruchow, Ileana
Bazzano, Angela
Landi, Raffaella
Malizia, Angela
Palazzi, Eliana
Stephen, John B.
Ubertini, Pietro
author_sort Marchesini, Ezequiel Joaquín
title Looking for blazars in a sample of unidentified high-energy emitting Fermi sources: preliminary results
title_short Looking for blazars in a sample of unidentified high-energy emitting Fermi sources: preliminary results
title_full Looking for blazars in a sample of unidentified high-energy emitting Fermi sources: preliminary results
title_fullStr Looking for blazars in a sample of unidentified high-energy emitting Fermi sources: preliminary results
title_full_unstemmed Looking for blazars in a sample of unidentified high-energy emitting Fermi sources: preliminary results
title_sort looking for blazars in a sample of unidentified high-energy emitting fermi sources: preliminary results
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/168109
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