J/MNRAS/515/5159 Radio and winds in BALQSOs (Petley+, 2022)
Connecting radio emission to AGN wind properties with broad absorption
line quasars.
Petley J.W., Morabito L.K., Alexander D.M., Rankine A.L., Fawcett V.A.,
Rosario D.J., Matthews J.H., Shimwell T.M., Drabent A.
<Mon. Not. R. Astron. Soc. 515, 5159-5174 (2022)>
=2022MNRAS.515.5159P 2022MNRAS.515.5159P (SIMBAD/NED BibCode)
ADC_Keywords: QSOs ; Active gal. nuclei ; Radio sources
Keywords: galaxies: active - quasars: general - radio continuum: galaxies
Abstract:
Broad Absorption Line Quasars (BALQSOs) show strong signatures of
powerful outflows, with the potential to alter the cosmic history of
their host galaxies. These signatures are only seen in ∼10% of
optically selected quasars, although the fraction significantly
increases in IR and radio selected samples. A proven physical
explanation for this observed fraction has yet to be found, along with
a determination of why this fraction increases at radio wavelengths.
We present the largest sample of radio matched BALQSOs using the LOFAR
Two-metre Sky Survey Data Release 2 and employ it to investigate radio
properties of BALQSOs. Within the DR2 footprint, there are 3537
BALQSOs from Sloan Digital Sky Survey DR12 with continuum signal to
noise ≥5. We find radio-detections for 1108 BALQSOs, with an
important sub-population of 120 LoBALs, an unprecedented sample size
for radio matched BALQSOs given the (sky) coverage to date. BALQSOs
are a radio-quiet population that show an increase of x1.50
radio-detection fraction compared to non-BALQSOs. LoBALs show an
increase of x2.22 that of non-BALQSO quasars. We show that this
detection fraction correlates with wind-strength, reddening and CIV
emission properties of BALQSOs and that these features may be
connected, although no single property can fully explain the enhanced
radio detection fraction. We create composite spectra for sub-classes
of BALQSOs based on wind strength, colour, and radio properties,
finding differences in the absorption profiles of radio-detected and
radio-undetected sources, particularly for LoBALs. Overall, we favour
a wind-ISM interaction explanation for the increased radio-detection
fraction.
Description:
This table contains the data used from SDSS DR12 and LoTSS DR2 with
added columns with radio luminosity, rest-B band luminosity and radio
loudness.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
catalog.dat 673 22913 SDSS DR12 and LoTSS DR2 catalog
--------------------------------------------------------------------------------
See also:
VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)
VII/279 : SDSS quasar catalog: twelfth data release (Paris+, 2017)
J/A+A/659/A1 : LOFAR Two-metre Sky Survey (LoTSS) DR2 (Shimwell+, 2022)
Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 22 A22 --- Name LoTSS DR2 Source Name, Cat. J/A+A/659/A1
(Source_Name)
24- 45 F22.18 deg RAdeg LoTSS DR2 Right Ascension (J2000) (RA)
47- 67 E21.15 arcsec e_RAdeg LoTSS DR2 Right Ascension uncertainty
(E_RA)
69- 86 F18.15 deg DEdeg LoTSS DR2 Declination (J2000) (DEC)
88-108 E21.15 arcsec e_DEdeg LoTSS DR2 Declination uncertainty (E_DEC)
110-132 F23.17 mJy/beam Fpeak LoTSS DR2 144MHz peak flux (Peak_flux)
134-154 F21.18 mJy/beam e_Fpeak LoTSS DR2 144MHz peak flux uncertainty
(EPeakflux)
156-178 F23.17 mJy Ftot LoTSS DR2 144MHz integrated flux
(Total_flux)
180-201 F22.18 mJy e_Ftot LoTSS DR2 144MHz integrated flux
uncertainty (ETotalflux)
203-221 F19.16 arcsec Maj LoTSS DR2 major axis size (Maj)
223-243 E21.15 arcsec e_Maj LoTSS DR2 major axis size uncertainty
(E_Maj)
245-263 F19.16 arcsec Majdc ?=0 LoTSS DR2 deconvolved major axis size
(DC_Maj)
265-285 E21.15 arcsec e_Majdc LoTSS DR2 deconvolved major axis size
uncertainty (EDCMaj)
287-304 A18 --- SDSS SDSS name, Cat. VII/279
(HHMMSS.ss+DDMMSS.s) (SDSS_NAME)
306-325 F20.16 deg RA1deg ?=- SDSS Right Ascension (J2000) (RA_1)
327-344 F18.15 deg DE1deg ?=- SDSS Declination (J2000) (DEC_1)
346-354 I9 --- THING ? SDSS unique identifier (THING_ID)
356-359 I4 --- Plate ? Spectroscopic plate number (PLATE)
361-365 I5 --- MJD ? Spectroscopic MJD (MJD)
367-370 I4 --- Fiber ? Spectroscopic fiber ID (FIBERID)
372-390 F19.17 --- zVI ?=- Visually inspected redshift (Z_VI)
392-410 F19.16 --- SNR1700 ?=- Median signal-to-noise ratio per pixel
in the window 1650-1750Å (SNR_1700)
412 I1 --- BALFlagVI [0/1] Visual BALQSO flag (BALFLAGVI)
414-437 F24.18 km/s BI-CIV ?=- CIV absorption trough balnicity index
(BI_CIV)
439-462 F24.18 km/s e_BI-CIV ?=- CIV absorption trough balnicity index
uncertainty (ERRBICIV)
464-482 F19.16 0.1nm REW-ALIII ?=- Rest frame ALIII equivalent width
(REW_ALIII)
484-490 F7.3 10-7W L3000 ?=- Estimated 3000Å luminosity (L3000)
492-497 F6.3 Msun MBHMgII ?=- Black hole mass estimated from MgII
(MBHMgII) (1)
499-504 F6.3 Msun MBHCIV ?=- Black hole mass estimated from CIV
(MBHCIV) (1)
506-512 F7.3 10-7W Lbol ?=- Quasar bolometric luminosity (Lbol)
514-519 F6.3 10-7W e_Lbol ?=- Quasar bolometric luminosity
uncertainty (e_Lbol)
521-526 F6.3 --- lognEdd ?=- log(Eddington fraction) (nEdd)
528-545 F18.14 deg RA2deg ?=- FIRST Right Ascension (J2000) (RAJ2000)
547-564 F18.15 deg DE2deg ?=- FIRST Declination (J2000) (DEJ2000)
566-573 F8.2 mJy/beam F1.4peak ?=- FIRST 1.4GHz peak flux (Fpeak)
575-582 F8.2 mJy F1.4int ?=- FIRST 1.4GHz integrated flux (Fint)
584-588 F5.3 mJy rms1.4 ?=- FIRST 1.4GHz rms noise around source
(Rms)
590-609 F20.18 arcsec Sep ?=- FIRST-LoTSS separation (Separation)
611-631 E21.15 W Bmagrest ?=0 Estimated rest b-band luminosity
(REST_B)
633-650 F18.15 [W] logLRadio ?=0 log(Rest frame 144MHz synchotron
luminosity) (Radio_luminosity)
652-672 F21.18 --- R ? 144MHz/B-band radio loudness
(Radio_loudness)
673 A1 --- n_R [I] I for infinity
--------------------------------------------------------------------------------
Note (1): Black Hole mass estimates from Kozlowski, 2017ApJS..228....9K 2017ApJS..228....9K,
Cat. J/ApJS/228/9.
--------------------------------------------------------------------------------
Acknowledgements:
James Petley, james.w.petley(at)durham.ac.uk
References:
Paris et al., SDSS DR12 Quasar, 2017A&A...597A..79P 2017A&A...597A..79P, Cat. VII/279
Shimwell et al., LoTSS DR2, 2022A&A...659A...1S 2022A&A...659A...1S, Cat. J/A+A/659/A1
Becker et al., FIRST Survey, 1995ApJ...450..559B 1995ApJ...450..559B, See Cat. VIII/92
(End) Patricia Vannier [CDS] 05-Jul-2022