AT 2019lrq
RA/DEC (2000)
16:18:01.310 +67:04:00.19
244.50546 +67.06672
Type
AGN
Redshift
0.095
Related AstroNotes: 2019-53
Source Group
ASAS-SN
Discovery Date
2019-07-24 06:43:12
TNS AT
Y
Public
Y
Host Name
2MASX J16180075+6703563
Discovery Mag
18.1
Filter
g-Sloan
Discoverer/s
K. Z. Stanek, for the ASAS-SN team
Separated 21,910.800 arcsec from TESS-Sector14 source : RA=17:04:43.968, DEC=+71:34:11.28

Spectra

 AT_2019lrq - 2019-07-24 22:09:25 Ekar / AFOSC (Padova-Asiago)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
Show He II at z=vexp= km/s
Show O at z=vexp= km/s
Show [O I] at z=vexp= km/s
Show O II at z=vexp= km/s
Show [O II] at z=vexp= km/s
Show [O III] at z=vexp= km/s
Show Na at z=vexp= km/s
Show Mg at z=vexp= km/s
Show Mg II at z=vexp= km/s
Show Si II at z=vexp= km/s
Show S II at z=vexp= km/s
Show Ca II at z=vexp= km/s
Show [Ca II] at z=vexp= km/s
Show Fe II at z=vexp= km/s
Show Fe III at z=vexp= km/s
Show Å at z=vexp= km/s
Show Å at z=vexp= km/s
Show Tellurics 
Show Galaxy lines at z=
Show WR-WN at z=vexp= km/s
Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)
Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
46502019-07-24 22:09:25Ekar / AFOSC2700Tomasella, SalmasoTomasellaPadova-Asiago tns_2019lrq_2019-07-24_22-09-25_Ekar_AFOSC_Padova-Asiago.dat tns_2019lrq_2019-07-24_22-09-25_Ekar_AFOSC_Padova-Asiago.fitsObjectPadova-Asiago
Light Curves
FilterTel / InstObs-date rangePhotometry
g-SloanASASSN-1_Brutus2019-07-24 06:43:12 - 2019-07-24 06:43:121
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
802242019-07-24 06:43:1218.1ABMagg-SloanASASSN-1_Brutus
g-SloanASASSN-4_Leavitt2019-07-22 05:31:12 - 2019-07-22 05:31:121
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
802232019-07-22 05:31:1218ABMagg-SloanASASSN-4_Leavitt[Last non detection]
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
423092019-07-24 13:27:03KZStanekK. Z. Stanek, for the ASAS-SN teamASAS-SN16:18:01.310+67:04:00.192019-07-24 06:43:1218.1g-SloanPSNASASSN-19seASAS-SNUnknown redshift host, in the TESS Sector 14 FoV
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
46422019-07-26 06:44:47linatomaL. Tomasella (INAF OAPd), M. Berton (FINCA University of Turku), S. Benetti, E. Cappellaro, M. Turatto, I. SalmasoPadova-AsiagoAGN0.095Padova-AsiagoAT2019lrq is a type 1 AGN at z = 0.095, as measured by the low ionization line [O II] 3727. The high ionization lines of [O III] are shifted with respect to the galaxy restframe by more than 100 km/s, suggesting a disturbed kinematics of the gas. A similar behavior is present in the Balmer lines. In particular, the Hbeta likely has three distinct kinematic components. The first has a FWHM of 1850 km/s and is blueshifted by 1680 km/s. The second component is in the same rame as the [O II] line, and has a FWHM of 1050 km/s. The last one, instead, is redshifted by 1360 km/s, and it has a FWHM of 2100 km/s. This behavior is reminiscent of a candidate black hole binary (Bon et al. 2012, 2016). The optical image, indeed, shows possible signs of a recent merger, which could account for these peculiar properties.

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