J/A+A/635/A39 Photometry of SN 2015da (Tartaglia+, 2020)
The long-lived Type IIn SN 2015da.
Infrared echoes and strong interaction within an extended massive shell.
Tartaglia L., Pastorello A., Sollerman E., Fransson C., Mattila S.,
Fraser M., Taddia F., Tomasella L., Turatto M., Morales-Garoffolo A.,
Elias-Rosa N., Lundqvist P., Harmanen J., Reynolds T., Cappellaro E.,
Barbarino C., Nyholm A., Kool E., Ofek E., Gao X., Jin Z., Tan H.,
Sand D.J., Ciabattari F., Wang X., Zhang J., Huang F., Li W., Mo J., Rui L.,
Xiang D., Zhang T., Hosseinzadeh G., Howell D.A., McCully C., Valenti S.,
Benetti S., Callis E., Carracedo A.S., Fremling C., Kangas T., Rubin A.,
Somero A., Terreran G.
<Astron. Astrophys. 635, A39 (2020)>
=2020A&A...635A..39T 2020A&A...635A..39T (SIMBAD/NED BibCode)
ADC_Keywords: Supernovae ; Photometry, infrared ; Photometry, SDSS
Keywords: supernovae: general - galaxies: individual: NGC 5337 -
supernovae: individual: PSN J13522411+3941286 -
supernovae: individual: iPTF16tu - supernovae: individual: SN 2015da
Abstract:
In this paper we report the results of the first ∼four years of
spectroscopic and photometric monitoring of the Type IIn supernova SN
2015da (also known as PSN J13522411+3941286, or iPTF16tu). The
supernova exploded in the nearby spiral galaxy NGC 5337 in a
relatively highly extinguished environment. The transient showed
prominent narrow Balmer lines in emission at all times and a slow rise
to maximum in all bands. In addition, early observations performed by
amateur astronomers give a very well-constrained explosion epoch. The
observables are consistent with continuous interaction between the
supernova ejecta and a dense and extended H-rich circumstellar medium.
The presence of such an extended and dense medium is difficult to
reconcile with standard stellar evolution models, since the
metallicity at the position of SN 2015da seems to be slightly
subsolar. Interaction is likely the mechanism powering the light
curve, as confirmed by the analysis of the pseudo bolometric light
curve, which gives a total radiated energy ≳1051erg. Modeling the
light curve in the context of a supernova shock breakout through a
dense circumstellar medium allowed us to infer the mass of the
prexisting gas to be ~=8M☉, with an extreme mass-loss rate for
the progenitor star ~=0.6M☉/yr, suggesting that most of the
circumstellar gas was produced during multiple eruptive events. Near-
and mid-infrared observations reveal a fluxexcess in these domains,
similar to those observed in SN 2010jl and other interacting
transients, likely due to preexisting radiatively heated dust
surrounding the supernova. By modeling the infrared excess, we infer a
mass ≳0.4x10-3M☉ for the dust.
Description:
Optical and NIR photometric data were mainly obtained using the
telescopes of the Las Cumbres Observatory network within the Supernova
Key Project and by the NUTS collaboration.
Photometric tables of SN 2015da studied in the paper.
Objects:
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RA (2000) DE Designation(s)
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13 52 24.110 +39 41 28.60 SN 2015da = PSN J13522411+3941286
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 95 186 Johnson-Cousins UBVRI (VegaMag) photometry of
SN 2015da
tablea2.dat 95 107 Sloan ugriz (ABmag) photometry of SN 2015da
tablea3.dat 59 33 JHK (VegaMag) photometry of SN 2015da
tablea4.dat 46 7 WISE W1 W2 (VegaMag) photometry of SN 2015da
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- Date Date of observation (yyyymmdd)
10- 18 F9.3 d MJD Modified Julian Date (JD-2400000)
21- 26 F6.3 mag Umag ? U magnitude (Vega)
28- 32 F5.3 mag e_Umag ? Error on Umag (Vega)
34 A1 --- l_Bmag Limit flag on Bmag
36- 41 F6.3 mag Bmag ? B magnitude (Vega)
43- 47 F5.3 mag e_Bmag ? Error on Bmag (Vega)
49 A1 --- l_Vmag Limit flag on Vmag
51- 56 F6.3 mag Vmag ? V magnitude (Vega)
58- 62 F5.3 mag e_Vmag ? Error on Vmag (Vega)
64 A1 --- l_Rmag Limit flag on Rmag
66- 71 F6.3 mag Rmag ? R magnitude (Vega)
73- 77 F5.3 mag e_Rmag ? Error on Rmag (Vega)
79 A1 --- l_Imag Limit flag on Imag
81- 86 F6.3 mag Imag ? I magnitude (Vega)
88- 92 F5.3 mag e_Imag ? Error on Imag (Vega)
94- 95 I2 --- Tel Telescope numerical code (1)
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Note (1): Telescope numerical code as follows:
1 = 0.5m Newton telescope @f/4.6 with a CCD FLI Proline camera and a
4710 imaging chip (Osservatorio Astronomico di Monte Agliale,
Borgo a Mozzano, Lucca, Italy)
2 = 0.28m Cassegrain C11 telescope with a SBIG ST-8 camera
(Osservatorio del Col Druscie, Cortina d'Ampezzo, Italy)
3 = 0.35m Celestron C14 Schmidt-Cassegrain telescope @f/6.9 with a QHY9
camera (Xingming Observatory, China)
4 = 0.45m Cassegrain reflector @f/4.6 with a FLI-ML8300 camera
(Fujimi-machi, Nagano Prefecture, Japan)
5 = 0.35m Schmidt-Cassegrain @f/11 telescope with a ST10XME SBIG camera
(Mt Teide, Spain)
6 = 0.8m Tsinghua-NAOC Telescope (Xinglong Observatory, Yanshan Mountains,
Xinglong County, Hebei Province, China)
7 = 0.43m @f/6.8 reflector with a FLI-PL6303E CCD camera and a f/4.5
focal reducer (T21 telescope New Mexico Skies at Mayhill,
New Mexico, U.S.A.)
8 = 0.3m Ritchey-Chretien telescope with a SBIG ST-8300M CCD KAF-8300
camera @f/8, focal length 2440 mm (Okayama, Japan)
9 = Las Cumbres Observatory 1m0-08: node at McDonald Observatory
10 = Las Cumbres Observatory 2m0-01: node at Haleakala Observatory
11 = 1.82m Copernico telescope with AFOSC (Mt. Ekar, Asiago, Italy)
12 = 2.56m Nordic Optical Telescope with ALFOSC
(Roque de Los Muchachos, La Palma, Spain)
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- Date Date of observation (yyyymmdd)
10- 18 F9.3 d MJD Modified Julian Date (JD-2400000)
20 A1 --- l_umag Limit flag on umag
22- 27 F6.3 mag umag ? u magnitude (AB)
29- 33 F5.3 mag e_umag ? Error on umag (AB)
35 A1 --- l_gmag Limit flag on gmag
37- 42 F6.3 mag gmag ? g magnitude (AB)
44- 48 F5.3 mag e_gmag ? Error on gmag (AB)
50 A1 --- l_rmag Limit flag on rmag
52- 57 F6.3 mag rmag ? r magnitude (AB)
59- 63 F5.3 mag e_rmag ? Error on rmag (AB)
65 A1 --- l_imag Limit flag on imag
67- 72 F6.3 mag imag ? i magnitude (AB)
74- 78 F5.3 mag e_imag ? Error on imag (AB)
80 A1 --- l_zmag Limit flag on zmag
82- 87 F6.3 mag zmag ? z magnitude (AB)
89- 93 F5.3 mag e_zmag ? Error on zmag (AB)
95 I1 --- Tel Telescope numerical code (1)
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Note (1): Telescope numerical code as follows:
1 = 1.82m Copernico telescope with AFOSC (Mt. Ekar, Asiago, Italy)
2 = 0.6m Rapid Eye Mount (REM) telescope with ROS2 (ESO La Silla, Chile)
3 = 2.56m Nordic Optical Telescope with ALFOSC
(Roque de Los Muchachos, La Palma, Spain)
4 = Palomar's 48-inch Samuel Oschin Telescope (Mt. Palomar, CA, U.S.A.)
5 = Palomar's automated 60-inch telescope (Mt. Palomar, CA, U.S.A.)
6 = Las Cumbres Observatory 1m0-08: node at McDonald Observatory
7 = Las Cumbres Observatory 2m0-01node at Haleakala Observatory
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Byte-by-byte Description of file: tablea3.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- Date Date of observation (yyyymmdd)
10- 18 F9.3 d MJD Modified Julian Date (JD-2400000)
20- 25 F6.3 mag Jmag ? J magnitude (Vega)
27- 31 F5.3 mag e_Jmag ? Error on Jmag (Vega)
33- 38 F6.3 mag Hmag ? H magnitude (Vega)
40- 44 F5.3 mag e_Hmag ? Error on Hmag (Vega)
46- 51 F6.3 mag Kmag ? K magnitude (Vega)
53- 57 F5.3 mag e_Kmag ? Error on Kmag (Vega)
59 I1 --- Tel Telescope numerical code (1)
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Note (1): Telescope numerical code as follows:
1 = 3.56m Telescopio Nazionale Galileo with NICS
(Roque de Los Muchachos, La Palma, Spain)
2 = 0.6m Rapid Eye Mount (REM) telescope with REMIR
3 = 2.56m Nordic Optical Telescope with NOTCam
(Roque de Los Muchachos, La Palma, Spain)
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Byte-by-byte Description of file: tablea4.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- Date Date of observation (yyyymmdd)
10- 18 F9.3 d MJD Modified Julian Date (JD-2400000)
20- 25 F6.3 mag W1mag W1 magnitude (Vega)
27- 31 F5.3 mag e_W1mag Error on W1mag (Vega)
33- 38 F6.3 mag W2mag W2 magnitude (Vega)
40- 44 F5.3 mag e_W2mag Error on W2mag (Vega)
46 I1 --- Tel Telescope numerical code (1)
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Note (1): Telescope numerical code as follows:
1 = Wide-Field Infrared Survey Explorer
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Acknowledgements:
Leonardo Tartaglia, leonardo.tartaglia(at)astro.su.se
(End) Patricia Vannier [CDS] 08-Jan-2020