J/ApJ/910/83 Swift phot. recomputed for 38 transients (Hinkle+, 2021)
A Swift fix for nuclear outbursts.
Hinkle J.T., Holoien T.W.-S., Shappee B.J., Auchettl K.
<Astrophys. J., 910, 83 (2021)>
=2021ApJ...910...83H 2021ApJ...910...83H
ADC_Keywords: Photometry, ultraviolet; Active gal. nuclei; Optical
Keywords: Active galactic nuclei ; Black hole physics ;
Near ultraviolet astronomy ; Supermassive black holes ;
Tidal disruption ; Transient sources
Abstract:
In November 2020, the Swift team announced an update to the
UltraViolet and Optical Telescope calibration to correct for the loss
of sensitivity over time. This correction affects observations in the
three near-ultraviolet (UV) filters, by up to 0.3mag in some cases. As
UV photometry is critical to characterizing tidal disruption events
(TDEs) and other peculiar nuclear outbursts, we recomputed published
Swift data for TDEs and other singular nuclear outbursts with Swift
photometry in 2015 or later as a service to the community. Using
archival UV, optical, and infrared photometry, we ran host SED fits
for each host galaxy. From these, we computed synthetic host
magnitudes and host-galaxy properties. We calculated host-subtracted
magnitudes for each transient and computed blackbody fits. In addition
to the nuclear outbursts, we include the ambiguous transient
ATLAS18qqn (AT2018cow), which has been classified as a potential TDE
on an intermediate-mass black hole. Finally, with updated bolometric
light curves, we recover the relationship of
Hinkle+ (2020ApJ...894L..10H 2020ApJ...894L..10H), where more-luminous TDEs decay more
slowly than less-luminous TDEs, with decreased scatter compared to the
original relationship.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 174 38 Sample of objects
table2.dat 48 371 Archival host photometry
table3.dat 49 797 Synthetic host-galaxy magnitudes
table4.dat 86 38 Host galaxy properties
table5.dat 69 4845 Unsubtracted Swift photometry
table6.dat 69 4845 Host-subtracted Swift photometry
table7.dat 78 798 Blackbody fits
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See also:
B/swift : Swift Master Catalog (HEASARC, 2004-)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
II/357 : The Dark Energy Survey (DES): Data Release 1 (Abbott+, 2018)
V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)
J/ApJ/793/38 : Palomar Transient Factory photometric obs. (Arcavi+, 2014)
J/ApJ/806/129 : Space telescope RM project. II. Swift data (Edelson+, 2015)
J/MNRAS/455/2918 : Phot. & line luminosities for ASASSN-14li (Holoien+, 2016)
J/MNRAS/463/3813 : ASASSN-15oi UBVI M2W1W2 light curves (Holoien+, 2016)
J/MNRAS/465/L114 : OGLE16aaa UVOT light curves (Wyrzykowski+, 2017)
J/ApJ/844/46 : Phot. of the transient event iPTF16fnl (Blagorodnova+, 2017)
J/ApJ/852/72 : LFs of tidal disruption flares (van Velzen, 2018)
J/ApJ/873/92 : Opt. & UV evolution of the TDE iPTF15af (Blagorodnova+, 2019)
J/ApJ/880/120 : Phot. of the tidal disruption event PS18kh (Holoien+, 2019)
J/ApJ/883/94 : Optical and UV follow-up of 1ES 1927+654 (Trakhtenbrot+, 2019)
J/ApJ/883/111 : UV-Opt LCs of ASASSN-19bt detected by TESS (Holoien+, 2019)
J/ApJ/895/49 : Opt. spectrum of ZTF18abvkwla and its host galaxy (Ho+, 2020)
J/ApJ/895/L23 : Radio observation of the transient CSS161010 (Coppejans+, 2020)
J/ApJ/898/161 : 500days of ASASSN-18pg multiwavelength obs. (Holoien+, 2020)
J/ApJ/903/31 : AT2018hyz phot. with Swift XRT, UVOT and Swope (Hung+, 2020)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Discovery name of transient
14- 22 A9 --- TNSID Transient Name Server ID (G1)
24- 25 I2 h RAh Hour of right ascension (J2000)
27- 28 I2 min RAm Minute of right ascension (J2000)
30- 35 F6.3 s RAs Second of right ascension (J2000)
37 A1 --- DE- Sign of declination (J2000)
38- 39 I2 deg DEd Degree of declination (J2000)
41- 42 I2 arcmin DEm Arcminute of declination (J2000)
44- 48 F5.2 arcsec DEs Arcsecond of declination (J2000)
50- 58 A9 --- Type Source type (1)
60 A1 --- f_Type Flag on Type (2)
62- 174 A113 --- Ref Reference(s) (3)
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Note (1): The type given reflects the classifications in the listed references.
If using the revised photometry presented here, please cite both this
paper and the original paper(s) in which Swift photometry was
published.
Note (2): Flag as follows:
a = These sources have been interpreted as TDEs occurring in AGN host
galaxies.
Note (3): References include the discovery papers and papers using Swift data
taken in 2015 or later.
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Byte-by-byte Description of file: table[23].dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Discovery name of transient
14- 22 A9 --- TNSID Transient Name Server ID (G1)
24- 35 A12 --- Filter Photometric filter (1)
37 A1 --- l_mag 3-sigma upper limit flag on mag
38- 43 F6.3 mag mag [13.23/28] Apparent AB magnitude in Filter
45- 49 F5.3 mag e_mag [0.006/5.1]? Uncertainty in mag
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Note (1): NUV, J/H/Ks, and W1/W2 magnitudes are obtained from GALEX, 2MASS,
and WISE, respectively. Values in parentheses indicate specific
filter sets for filters that have the same name:
SDSS = Sloan Digital Sky Survey,
PS = Pan-STARRS,
DES = Dark Energy Survey,
UVOT = Swift Ultraviolet and Optical Telescope,
J-C = Johnson-Cousins,
APASS = AAVSO Photometric All-Sky Survey.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Discovery Name of Transient
14- 22 A9 --- TNSID Transient Name Server ID (G1)
24- 29 F6.4 --- zspec [0.014/0.38] Host Galaxy Redshift
31- 35 F5.3 mag Av [0.02/0.67] V-band Galactic extinction (1)
37- 41 F5.2 [yr] logAge [8.9/10] Log stellar age
43- 46 F4.2 [yr] e_logAge [0/1.1] Lower Uncertainty in logAge
48- 51 F4.2 [yr] E_logAge [0/0.7] Upper Uncertainty in logAge
53- 57 F5.2 [Msun] logMass [9.1/11.1] Log of stellar mass
59- 62 F4.2 [Msun] e_logMass [0/0.8] Lower uncertainty in logMass
64- 67 F4.2 [Msun] E_logMass [0.01/0.4] Upper uncertainty in logMass
69- 74 F6.2 [Msun/yr] logSFR [-23.5/0.6]?=-99 Log of star formation rate
76- 80 F5.2 [Msun/yr] e_logSFR [0/23.5] Lower uncertainty in logSFR
82- 86 F5.2 [Msun/yr] E_logSFR [0/18.5] Upper uncertainty in logSFR
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Note (1): In the direction of the host galaxy.
From Schlafly & Finkbeiner (2011ApJ...737..103S 2011ApJ...737..103S).
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Byte-by-byte Description of file: table[56].dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Discovery Name of Transient
14- 22 A9 --- TNSID Transient Name Server ID (G1)
24- 32 F9.3 d MJD [56684.894/59122.753] Modified Julian Date
34- 37 A4 --- Filt Filter Name (1)
40 A1 --- l_mag The 3σ upper limit flag on mag (2)
41- 45 F5.2 mag mag [12.69/22.5] Photometric apparent AB
magnitude in Filt
47- 50 F4.2 mag e_mag [0.03/0.4]? Uncertainty in mag
52- 60 E9.3 cW/m2/nm Flux [-7.1e-16/2.2e-13] Photometric flux density;
in erg/s/cm2/Å units (3)
62- 69 E8.2 cW/m2/nm e_Flux [5.7e-18/1.4e-14] Uncertainty in Flux
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Note (1): B and V photometry were converted from the Swift UVOT filters to
standard Johnson-Cousins filters using color corrections described
in the text. Other filters are Swift UVOT filters.
Note (2): 3-sigma upper limits are given for epochs where the transients
were not detected (transient flux was less than a 3-sigma detection).
Note (3): A negative flux density indicates the measured magnitude was less
than the synthetic host magnitude in that filter.
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Discovery Name of Transient
14- 22 A9 --- TNSID Transient Name Server ID (G1)
24- 31 F8.2 d MJD [56684.9/59122.75] Modified Julian Date
33- 37 F5.2 [10-7W] logLum [41.65/45.03] Log of blackbody luminosity
39- 42 F4.2 [10-7W] e_logLum [0.01/0.3] Lower uncertainty in logLum
44- 47 F4.2 [10-7W] E_logLum [0.01/0.7] Upper uncertainty in logLum
49- 53 F5.2 [cm] logRad [13.56/15.89] Log blackbody radius
55- 58 F4.2 [cm] e_logRad [0.01/0.7] Lower uncertainty in logRad
60- 63 F4.2 [cm] E_logRad [0.01/0.82] Upper uncertainty in logRad
65- 68 F4.2 [K] logTemp [3.9/4.72] Log blackbody temperature
70- 73 F4.2 [K] e_logTemp [0/0.26] Lower uncertainty in logTemp
75- 78 F4.2 [K] E_logTemp [0/0.32] Upper uncertainty in logTemp
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Global notes:
Note (G1): A value of "---" indicates that the transient was not assigned a
TNS ID or was discovered prior to 2016, when the Transient
Name Server went online.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 16-Aug-2022