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Flux-density spectral analysis for several pulsars and two newly identified gigahertz-peaked spectra pulsars

Dembska, M. and Kijak, J. and Jessner, A. and Lewandowski, W. and Bhattacharyya, B. and Gupta, Y. (2014) Flux-density spectral analysis for several pulsars and two newly identified gigahertz-peaked spectra pulsars. Monthly Notices of the Royal Astronomical Society, 445 (3), pp. 3105-3114. Oxford University Press. DOI: 10.1093/mnras/stu1905 ISSN 0035-8711

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Official URL: http://mnras.oxfordjournals.org/content/445/3/3105

Abstract

In this paper, we present results from flux-density measurements for 21 pulsars over a wide frequency range, using the Giant Metrewave Radio Telescope (GMRT) and the Effelsberg telescope. Our sample was a set of mostly newly discovered pulsars from the selection of candidates for gigahertz-peaked spectra (GPS) pulsars. Using the results of our observations along with previously published data, we identify two new GPS pulsars. One of them, PSR J1740+1000, with dispersion measure (DM) of 24 pc cm$^{−3}$, is the first GPS pulsar with such a low DM value. We also selected several strong candidates for objects with high-frequency turnover in their spectra, which require further investigation. We also revisit our source selection criteria for future searches for GPS pulsars.

Item URL in elib:https://elib.dlr.de/91812/
Document Type:Article
Title:Flux-density spectral analysis for several pulsars and two newly identified gigahertz-peaked spectra pulsars
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dembska, M.marta.dembska (at) dlr.deUNSPECIFIED
Kijak, J.Kepler Institute of Astronomy, University of Zielona Góra, Zielona Góra, PolandUNSPECIFIED
Jessner, A.Max-Planck-Institut für Radioastronomie, Bonn, GermanyUNSPECIFIED
Lewandowski, W.Kepler Institute of Astronomy, University of Zielona Góra, Zielona Góra, PolandUNSPECIFIED
Bhattacharyya, B.Inter-University Centre for Astronomy, and Astrophysics, Pune, IndiaUNSPECIFIED
Gupta, Y.National Centre for Radio Astrophysics, Pune, IndiaUNSPECIFIED
Date:24 October 2014
Journal or Publication Title:Monthly Notices of the Royal Astronomical Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:445
DOI :10.1093/mnras/stu1905
Page Range:pp. 3105-3114
Publisher:Oxford University Press
ISSN:0035-8711
Status:Published
Keywords:pulsars: general – pulsars: individual: J1740+1000, J1852−0635
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben Systemkonditionierung, Systemkonditionierung
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systemkonditionierung
Deposited By: Dembska, Marta
Deposited On:13 Nov 2014 12:27
Last Modified:06 Sep 2019 15:17

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