Two new catalogs of blazar candidates in the wise infrared sky

Raffaele D’Abrusco, Nuria Álvarez Crespo, Francesco Massaro, Riccardo Campana, Vahram Chavushyan, Marco Landoni, Fabio La Franca, Nicola Masetti, Dan Milisavljevic, Alessandro Paggi, Federica Ricci, Howard A. Smith

Resultado de la investigación: Article

1 Cita (Scopus)

Resumen

We present two catalogs of radio-loud candidate blazars whose Wide-Field Infrared Survey Explorer (WISE) mid-infrared colors are selected to be consistent with the colors of confirmed γ-ray-emitting blazars. The first catalog is the improved and expanded release of the WISE Blazar-like Radio-Loud Sources (WIBRaLS) catalog presented by D’Abrusco et al. It includes sources detected in all four WISE filters, spatially cross-matched with radio sources in one of three radio surveys and radio-loud based on their q22 spectral parameter. WIBRaLS2 includes 9541 sources classified as BL Lacs, flat-spectrum radio quasars, or mixed candidates based on their WISE colors. The second catalog, called KDEBLLACS, based on a new selection technique, contains 5579 candidate BL Lacs extracted from the population of WISE sources detected in the first three WISE passbands ([3.4], [4.6], and [12]) only, whose mid-infrared colors are similar to those of confirmed, γ-ray BL Lacs. Members of KDBLLACS are also required to have a radio counterpart and be radio-loud based on the parameter q12, defined similarly to the q22 used for the WIBRaLS2. We describe the properties of these catalogs and compare them with the largest samples of confirmed and candidate blazars in the literature. We cross-match the two new catalogs with the most recent catalogs of γ-ray sources detected by the Fermi Large Area Telescope. Since spectroscopic observations of candidate blazars from the first WIBRaLS catalog within the uncertainty regions of γ-ray unassociated sources confirmed that ∼90% of these candidates are blazars, we anticipate that these new catalogs will again play an important role in the identification of the γ-ray sky.

Idioma originalEnglish
PublicaciónAstrophysical Journal, Supplement Series
Volumen242
N.º1
DOI
EstadoPublished - 1 ene 2019

Huella dactilar

Wide-field Infrared Survey Explorer
catalogs
sky
radio
blazars
rays
color
radio spectra
quasars
telescopes
filter
filters

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

D’Abrusco, R., Crespo, N. Á., Massaro, F., Campana, R., Chavushyan, V., Landoni, M., ... Smith, H. A. (2019). Two new catalogs of blazar candidates in the wise infrared sky. Astrophysical Journal, Supplement Series, 242(1). https://doi.org/10.3847/1538-4365/ab16f4
D’Abrusco, Raffaele ; Crespo, Nuria Álvarez ; Massaro, Francesco ; Campana, Riccardo ; Chavushyan, Vahram ; Landoni, Marco ; Franca, Fabio La ; Masetti, Nicola ; Milisavljevic, Dan ; Paggi, Alessandro ; Ricci, Federica ; Smith, Howard A. / Two new catalogs of blazar candidates in the wise infrared sky. En: Astrophysical Journal, Supplement Series. 2019 ; Vol. 242, N.º 1.
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abstract = "We present two catalogs of radio-loud candidate blazars whose Wide-Field Infrared Survey Explorer (WISE) mid-infrared colors are selected to be consistent with the colors of confirmed γ-ray-emitting blazars. The first catalog is the improved and expanded release of the WISE Blazar-like Radio-Loud Sources (WIBRaLS) catalog presented by D’Abrusco et al. It includes sources detected in all four WISE filters, spatially cross-matched with radio sources in one of three radio surveys and radio-loud based on their q22 spectral parameter. WIBRaLS2 includes 9541 sources classified as BL Lacs, flat-spectrum radio quasars, or mixed candidates based on their WISE colors. The second catalog, called KDEBLLACS, based on a new selection technique, contains 5579 candidate BL Lacs extracted from the population of WISE sources detected in the first three WISE passbands ([3.4], [4.6], and [12]) only, whose mid-infrared colors are similar to those of confirmed, γ-ray BL Lacs. Members of KDBLLACS are also required to have a radio counterpart and be radio-loud based on the parameter q12, defined similarly to the q22 used for the WIBRaLS2. We describe the properties of these catalogs and compare them with the largest samples of confirmed and candidate blazars in the literature. We cross-match the two new catalogs with the most recent catalogs of γ-ray sources detected by the Fermi Large Area Telescope. Since spectroscopic observations of candidate blazars from the first WIBRaLS catalog within the uncertainty regions of γ-ray unassociated sources confirmed that ∼90{\%} of these candidates are blazars, we anticipate that these new catalogs will again play an important role in the identification of the γ-ray sky.",
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D’Abrusco, R, Crespo, NÁ, Massaro, F, Campana, R, Chavushyan, V, Landoni, M, Franca, FL, Masetti, N, Milisavljevic, D, Paggi, A, Ricci, F & Smith, HA 2019, 'Two new catalogs of blazar candidates in the wise infrared sky', Astrophysical Journal, Supplement Series, vol. 242, n.º 1. https://doi.org/10.3847/1538-4365/ab16f4

Two new catalogs of blazar candidates in the wise infrared sky. / D’Abrusco, Raffaele; Crespo, Nuria Álvarez; Massaro, Francesco; Campana, Riccardo; Chavushyan, Vahram; Landoni, Marco; Franca, Fabio La; Masetti, Nicola; Milisavljevic, Dan; Paggi, Alessandro; Ricci, Federica; Smith, Howard A.

En: Astrophysical Journal, Supplement Series, Vol. 242, N.º 1, 01.01.2019.

Resultado de la investigación: Article

TY - JOUR

T1 - Two new catalogs of blazar candidates in the wise infrared sky

AU - D’Abrusco, Raffaele

AU - Crespo, Nuria Álvarez

AU - Massaro, Francesco

AU - Campana, Riccardo

AU - Chavushyan, Vahram

AU - Landoni, Marco

AU - Franca, Fabio La

AU - Masetti, Nicola

AU - Milisavljevic, Dan

AU - Paggi, Alessandro

AU - Ricci, Federica

AU - Smith, Howard A.

PY - 2019/1/1

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N2 - We present two catalogs of radio-loud candidate blazars whose Wide-Field Infrared Survey Explorer (WISE) mid-infrared colors are selected to be consistent with the colors of confirmed γ-ray-emitting blazars. The first catalog is the improved and expanded release of the WISE Blazar-like Radio-Loud Sources (WIBRaLS) catalog presented by D’Abrusco et al. It includes sources detected in all four WISE filters, spatially cross-matched with radio sources in one of three radio surveys and radio-loud based on their q22 spectral parameter. WIBRaLS2 includes 9541 sources classified as BL Lacs, flat-spectrum radio quasars, or mixed candidates based on their WISE colors. The second catalog, called KDEBLLACS, based on a new selection technique, contains 5579 candidate BL Lacs extracted from the population of WISE sources detected in the first three WISE passbands ([3.4], [4.6], and [12]) only, whose mid-infrared colors are similar to those of confirmed, γ-ray BL Lacs. Members of KDBLLACS are also required to have a radio counterpart and be radio-loud based on the parameter q12, defined similarly to the q22 used for the WIBRaLS2. We describe the properties of these catalogs and compare them with the largest samples of confirmed and candidate blazars in the literature. We cross-match the two new catalogs with the most recent catalogs of γ-ray sources detected by the Fermi Large Area Telescope. Since spectroscopic observations of candidate blazars from the first WIBRaLS catalog within the uncertainty regions of γ-ray unassociated sources confirmed that ∼90% of these candidates are blazars, we anticipate that these new catalogs will again play an important role in the identification of the γ-ray sky.

AB - We present two catalogs of radio-loud candidate blazars whose Wide-Field Infrared Survey Explorer (WISE) mid-infrared colors are selected to be consistent with the colors of confirmed γ-ray-emitting blazars. The first catalog is the improved and expanded release of the WISE Blazar-like Radio-Loud Sources (WIBRaLS) catalog presented by D’Abrusco et al. It includes sources detected in all four WISE filters, spatially cross-matched with radio sources in one of three radio surveys and radio-loud based on their q22 spectral parameter. WIBRaLS2 includes 9541 sources classified as BL Lacs, flat-spectrum radio quasars, or mixed candidates based on their WISE colors. The second catalog, called KDEBLLACS, based on a new selection technique, contains 5579 candidate BL Lacs extracted from the population of WISE sources detected in the first three WISE passbands ([3.4], [4.6], and [12]) only, whose mid-infrared colors are similar to those of confirmed, γ-ray BL Lacs. Members of KDBLLACS are also required to have a radio counterpart and be radio-loud based on the parameter q12, defined similarly to the q22 used for the WIBRaLS2. We describe the properties of these catalogs and compare them with the largest samples of confirmed and candidate blazars in the literature. We cross-match the two new catalogs with the most recent catalogs of γ-ray sources detected by the Fermi Large Area Telescope. Since spectroscopic observations of candidate blazars from the first WIBRaLS catalog within the uncertainty regions of γ-ray unassociated sources confirmed that ∼90% of these candidates are blazars, we anticipate that these new catalogs will again play an important role in the identification of the γ-ray sky.

KW - BL Lacertae objects: general

KW - Catalogs

KW - Galaxies: active

KW - Radiation mechanisms: non-thermal Supporting material: FITS files

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D’Abrusco R, Crespo NÁ, Massaro F, Campana R, Chavushyan V, Landoni M y otros. Two new catalogs of blazar candidates in the wise infrared sky. Astrophysical Journal, Supplement Series. 2019 ene 1;242(1). https://doi.org/10.3847/1538-4365/ab16f4