J/ApJ/853/62 Optical and NIR spectra and LCs of SN2016ija (Tartaglia+, 2018)
The early detection and follow-up of the highly obscured type II supernova
2016ija/DLT16am.
Tartaglia L., Sand D.J., Valenti S., Wyatt S., Anderson J.P., Arcavi I.,
Ashall C., Botticella M.T., Cartier R., Chen T.-W., Cikota A., Coulter D.,
Valle M.D., Foley R.J., Gal-Yam A., Galbany L., Gall C., Haislip J.B.,
Harmanen J., Hosseinzadeh G., Howell D.A., Hsiao E.Y., Inserra C., Jha S.W.,
Kankare E., Kilpatrick C.D., Kouprianov V.V., Kuncarayakti H.,
Maccarone T.J., Maguire K., Mattila S., Mazzali P.A., McCully C.,
Melandri A., Morrell N., Phillips M.M., Pignata G., Piro A.L., Prentice S.,
Reichart D.E., Rojas-Bravo C., Smartt S.J., Smith K.W., Sollerman J.,
Stritzinger M.D., Sullivan M., Taddia F., Young D.R.
<Astrophys. J., 853, 62 (2018)>
=2018ApJ...853...62T 2018ApJ...853...62T
ADC_Keywords: Supernovae; Spectra, optical; Spectra, infrared; Photometry
Keywords: galaxies: individual (NGC 1532) ; supernovae: general ;
supernovae: individual (SN 2016ija, DLT16am)
Abstract:
We present our analysis of the Type II supernova DLT16am (SN2016ija).
The object was discovered during the ongoing D<40Mpc (DLT40) one-day
cadence supernova search at r∼20.1mag in the "edge-on" nearby
(D=20.0±4.0Mpc) galaxy NGC1532. The subsequent prompt and
high-cadenced spectroscopic and photometric follow-up revealed a
highly extinguished transient, with E(B-V)=1.95±0.15mag, consistent
with a standard extinction law with RV=3.1 and a bright
(MV=-18.48±0.77mag) absolute peak magnitude. A comparison of the
photometric features with those of large samples of SNe II reveals a
fast rise for the derived luminosity and a relatively short plateau
phase, with a slope of S50V=0.84±0.04mag/50days, consistent with
the photometric properties typical of those of fast-declining SNeII.
Despite the large uncertainties on the distance and the extinction in
the direction of DLT16am, the measured photospheric expansion velocity
and the derived absolute V-band magnitude at ∼50days after the
explosion match the existing luminosity-velocity relation for SNeII.
Description:
In this paper we describe the highly obscured, nearby Type II SN
DLT16am (SN 2016ija), the first SN discovered by the Distance Less
Than 40 (DLT40) Mpc supernova search. DLT16am was discovered
on 2016 November 21.19 UT in the nearby galaxy NGC 1532.
The goal of DLT40 survey is not to find many SNe, but ∼10 nearby SNe
per year within ∼1day from explosion. Fully operational since late
summer 2016, we observe ∼300-600 galaxies per night using a PROMPT
0.4m telescope (PROMPT5) at the Cerro Tololo Inter-American
Observatory (CTIO), achieving a typical single-epoch depth of
r∼19-20mag with filterless observations and a 45s integration time.
The field of view is 10x10arcmin2.
See section 2 for further explanations.
The spectral sequence of DLT16am is shown in Figure 3, while the log
of the spectroscopic observations in the optical and NIR domains is
reported in Table 1.
Optical spectra were mainly provided by Public ESO Spectroscopic
Survey for Transient Objects (PESSTO) using the ESO 3.58m New
Technology Telescope (NTT) with the ESO Faint Object Spectrograph and
Camera (v.2, EFOSC2), and the Las Cumbres Observatory network of
telescopes, using the 2m Faulkes north and south telescopes with
FLOYDS. Early-phase spectra were also provided using the 10m South
African Large Telescope (SALT) with the Robert Stobie Spectrograph
(RSS), and the 2.56m Nordic Optical Telescope (NOT) with Andalucia
Faint Object Spectrograph and Camera (ALFOSC).
Most NIR spectra were provided by PESSTO using the NTT with the SOFI
spectrograph. Two NIR spectra were obtained using the Gemini NIR
Spectrograph (GNIRS) at Gemini North. An NIR spectrum was also
obtained using the 6.5m Magellan Baade Telescope with the Folded-port
InfraRed Echellette (FIRE).
Multi-wavelength (300-2500nm) intermediate resolution spectra were
obtained using the ESO Very Large Telescope (VLT) with X-shooter,
mounted at the Cassegrain focus of the 8m VLT UT2 telescope.
Photometric data are shown in Figure 4 and reported in Tables 2-4.
See section 3 for further explanations.
Objects:
----------------------------------------------------------
RA (ICRS) DE Designation(s)
----------------------------------------------------------
04 12 07.64 -32 51 10.6 SN 2016ija = DLT 16am
----------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 151 31 Log of the spectroscopical observations
table2.dat 71 170 BV and unfiltered light curves of DLT16am
table3.dat 93 183 griz light curves of DLT16am
table4.dat 75 13 JHK light curves of DLT16am
fig3/* . 32 Individual spectra for the 31 observations
in FITS format
--------------------------------------------------------------------------------
See also:
VIII/76 : Leiden/Argentine/Bonn (LAB) Survey of Galactic HI (Kalberla+ 2005)
J/AJ/126/1607 : IRAS Revised Bright Galaxy Sample (Sanders+, 2003)
J/MNRAS/372/1315 : UBVRI photometry of SN 2004et (Sahu+, 2006)
J/MNRAS/384/107 : VRIJHK photometry of SN 2002cv (Elias-Rosa+, 2008)
J/MNRAS/394/2266 : SN 2005cs one-year photometry (Pastorello+, 2009)
J/ApJ/736/159 : Photometry monitoring of the SN PTF10vdl (Gal-Yam+, 2011)
J/AJ/146/86 : Cosmicflows-2 catalog (Tully+, 2013)
J/MNRAS/442/844 : BVRI light curves of type II-P supernovae (Faran+, 2014)
J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)
J/MNRAS/438/L101 : First month on SN 2013ej (Valenti+, 2014)
J/A+A/584/A62 : SUDARE VST-OmegaCAM search SN rates (Cappellaro+, 2015)
J/ApJ/799/208 : Type IIP supernovae from Pan-STARRS1 (Sanders+, 2015)
J/A+A/579/A40 : PESSTO catalog (Smartt+, 2015)
J/MNRAS/448/2608 : UV & optical photometric data for SN 2013by (Valenti+, 2015)
J/A+A/589/A110 : SN II in host HII regions (Anderson+, 2016)
J/AJ/151/33 : UBVRIz light curves of 51 Type II SNe (Galbany+, 2016)
J/ApJ/828/111 : Unsupervised clustering of type II SNe LCs (Rubin+, 2016)
J/ApJ/820/33 : R-band light curves of type II supernovae (Rubin+, 2016)
J/MNRAS/459/3939 : Type II supernova light curves (Valenti+, 2016)
http://dark.physics.ucdavis.edu/dlt40/DLT40 : The Distance Less Than 40
(DLT40) Mpc supernova search home page
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 "Y/M/D" Date UT date of observation
12- 22 F11.3 d JD Julian date of observation
24- 27 I4 d Phase [2/108] Phase (days from JD=2457712.6)
29- 35 A7 --- Tel Telescope (1)
36 A1 --- --- [+]
37- 45 A9 --- Inst Instrumental setup
47- 57 A11 --- Grism Grism/Grating
59- 62 I4 0.1nm lam1 [2980/9940] Lower range of wavelength
63 A1 --- --- [-]
64- 68 I5 0.1nm lam2 [5560/24790] Upper range of wavelength
70- 80 A11 s Exp Exposure(s) time
82-151 A70 --- File Name of the FITS file in subdirectory fig3;
column added by CDS
--------------------------------------------------------------------------------
Note (1): Telescope as follows:
FTN = 2m Faulkes Telescope North, Las Cumbres Observatory node at the
Haleakala Observatory, Hawaii;
FTS = 2m Faulkes Telescope South, Las Cumbres Observatory node at the
Siding Spring Observatory, Australia;
NOT = 2.56m Nordic Optical Telescope, located at Roque de los Muchachos,
La Palma, Spain;
ESO VLT = 8.2m Very Large Telescope, located at the ESO Cerro Paranal
Observatory, Chile;
ESO NTT = 3.58m New Technology Telescope, located at the ESO La Silla
Observatory, Chile;
Baade = 6.5m Magellan (Walter Baade) Telescope at the Las Campanas
Observatory, Chile;
Gemini = 8.19m Gemini North Telescope at the Mauna Kea Observatories, Hawaii;
SALT = 10m South African Large Telescope.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 "Y/M/D" Date UT date of the observation
12- 22 F11.3 d JD Julian Date
24- 29 F6.2 d Phase [-3.1/112.4] Days from JD=2457712.6
31 A1 --- l_Bmag Limit flag on Bmag
33- 37 F5.2 mag Bmag [18/22.4]? Apparent B filter magnitude
39 A1 --- l_Vmag Limit flag on Vmag
41- 45 F5.2 mag Vmag [18.7/21.4]? Apparent V filter magnitude
47- 50 F4.2 mag e_Vmag [0.06/0.6]? Uncertainty in Vmag
52 A1 --- l_Omag Limit flag on Omag
54- 58 F5.2 mag Omag [17.4/20.7]? Apparent Open filter magnitude
60- 63 F4.2 mag e_Omag [0.03/0.2]? Uncertainty in Omag
65- 71 A7 --- Inst Instrument (1)
--------------------------------------------------------------------------------
Note (1): Instrument as follows:
1m0-XX = Las Cumbers Observatory 1m telescope network, XX telescope ID;
2m0-XX = Las Cumbers Observatory 2m telescope network, XX telescope ID;
PROMPT5 = PROMPT5 telescope / CTIO;
EFOSC2 = ESO Faint Object Spectrograph and Camera v2;
IO:O = Optical imaging component of the Infrared-Optical camera of the
Liverpool Telescope.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 "Y/M/D" Date UT date of the observation
12- 22 F11.3 d JD Julian Date
24- 29 F6.2 d Phase [-4/116] Days from JD=2457712.6
31 A1 --- l_gmag Limit flag on gmag
33- 37 F5.2 mag gmag [19.7/22.7]? Apparent g filter magnitude
39- 42 F4.2 mag e_gmag [0.04/0.5]? Uncertainty in gmag
44 A1 --- l_rmag Limit flag on rmag
46- 50 F5.2 mag rmag [17.6/21]? Apparent r filter magnitude
52- 55 F4.2 mag e_rmag [0.04/0.6]? Uncertainty in rmag
57 A1 --- l_imag Limit flag on imag
59- 63 F5.2 mag imag [17/20.2]? Apparent i filter magnitude
65- 68 F4.2 mag e_imag [0.01/0.3]? Uncertainty in imag
70 A1 --- l_zmag Limit flag on zmag
72- 76 F5.2 mag zmag [16.2/19.8]? Apparent z filter magnitude
78- 81 F4.2 mag e_zmag [0.01/0.2]? Uncertainty in zmag
83- 93 A11 --- Inst Instrument (1)
--------------------------------------------------------------------------------
Note (1): Instrument as follows:
1m0-XX = Las Cumbers Observatory 1m telescope network, XX telescope ID;
PROMPT1 = PROMPT1 telescope / CTIO;
IO:O = Optical imaging component of the Infrared-Optical camera
of the Liverpool Telescope;
GROND = MPG/ESO Gamma-ray Burst Optical/Near-infrared Detector;
E2V = Las Campanas Observatory 1m Swope Telescope with the E2V camera;
ALFOSC FASU = Andalucia Faint Object Spectrograph and Camera / NOT.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 "Y/M/D" Date UT date of the observation
12- 22 F11.3 d JD Julian Date
24- 29 F6.2 d Phase [-4.9/107] Days from JD=2457712.6
31 A1 --- l_Jmag Limit flag on Jmag
33- 37 F5.2 mag Jmag [14.4/19]? Apparent J filter magnitude
39- 42 F4.2 mag e_Jmag [0.01/0.2]? Uncertainty in Jmag
44 A1 --- l_Hmag Limit flag on Hmag
46- 50 F5.2 mag Hmag [13.7/18.2] Apparent H filter magnitude
52- 55 F4.2 mag e_Hmag [0.08/0.2]? Uncertainty in Hmag
57 A1 --- l_Kmag Limit flag on Kmag
59- 63 F5.2 mag Kmag [13.2/16.7]? Apparent K filter magnitude
65- 68 F4.2 mag e_Kmag [0.09/0.2]? Uncertainty in Kmag
70- 75 A6 --- Inst Instrument (1)
--------------------------------------------------------------------------------
Note (1): Instrument as follows:
GROND = MPG/ESO Gamma-ray Burst Optical/Near-infrared Detector;
SOFI = ESO Son Of ISAAC camera / NTT;
NOTCAM = Nordic Optical Telescope NIR camera.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 25-Sep-2018