J/ApJ/886/99 HST obs. in the region of 3 young LMC SNIa remnants (Li+, 2019)
Search for surviving companions of progenitors of young LMC SN Ia remnants.
Li C.-J., Kerzendorf W.E., Chu Y.-H., Chen T.-W., Do T., Gruendl R.A.,
Holmes A., Ishioka R., Leibundgut B., Pan K.-C., Ricker P.M., Weisz D.
<Astrophys. J., 886, 99 (2019)>
=2019ApJ...886...99L 2019ApJ...886...99L
ADC_Keywords: Supernova remnants; Photometry, HST; Photometry, UBVRI;
Interstellar medium; Magellanic Clouds
Keywords: Interstellar medium ; Type Ia supernovae ; Supernova remnants ;
Companion stars ; Large Magellanic Cloud
Abstract:
We have used two methods to search for surviving companions of Type Ia
supernova progenitors in three Balmer-dominated supernova remnants in
the Large Magellanic Cloud: 0519-69.0, 0505-67.9 (DEM L71), and
0548-70.4. In the first method, we use the Hubble Space Telescope
photometric measurements of stars to construct color-magnitude
diagrams (CMDs) and compare positions of stars in the CMDs with those
expected from theoretical post-impact evolution of surviving
main-sequence or helium star companions. No obvious candidates of
surviving companions are identified in this photometric search. Future
models for surviving red giant companions or with different explosion
mechanisms are needed for thorough comparisons with these observations
in order to make more definitive conclusions. In the second method, we
use Multi Unit Spectroscopic Explorer observations of 0519-69.0 and
DEM L71 to carry out spectroscopic analyses of stars in order to use
large peculiar radial velocities as diagnostics of surviving
companions. We find a star in 0519-69.0 and a star in DEM L71 moving
at radial velocities of 182±0km/s and 213±0km/s, respectively,
more than 2.5σ from the mean radial velocity of the underlying
stellar population, 264 and 270km/s, respectively. These stars need
higher-quality spectra to investigate their abundances and rotation
velocities to determine whether they are indeed surviving companions
of the supernova progenitors.
Description:
We have obtained new HST images of SNR 0519-69.0, DEM L71, and
SNR0548-70.4, using the UVIS channel of Wide Field Camera 3 (WFC3) in
Program 13282 (PI: Chu). For SNR 0519-69.0, new images were obtained
with only the F475W and F814W filters because HST F550M and F658N
images taken with the Advanced Camera for Surveys (ACS) are available
in the Hubble Legacy Archive.
SNR 0519-69.0, DEM L71, and SNR 0548-70.4 were observed with the
Advanced CCD Imaging Spectrometer (ACIS) of the Chandra X-ray
Observatory for Program 01500024 (PI: Holt; 39.2ks), Program 01500900
(PI: Hughes; 45.6ks), and Program 02500872 (PI: Borkowski; 59.3ks),
respectively.
MUSE observations of SNR 0519-69.0 and DEM L71 were obtained with the
Very Large Telescope (VLT) UT4 of the European Southern Observatory
(ESO) on 2015 November 16 and 2016 January 17 for Program 096.D-0352(A)
(PI: Leibundgut).
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 83 12 HST observations
table4.dat 89 8 Stars brighter than V=23mag near
central region in the SNR 0519-69.0
table6.dat 89 89 Stars brighter than V=23mag near
central region in the DEML71
table9.dat 89 973 Stars brighter than V=23mag near
central region in the SNR 0548-70.4
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See also:
B/hst : HST Archived Exposures Catalog (STScI, 2007)
VII/232 : Nebulae in the Magellanic Clouds (Davies+ 1976)
J/AJ/128/1606 : Magellanic Clouds Phot. Survey: the LMC (Zaritsky+, 2004)
J/A+A/435/437 : Brightness & diam. for extragalactic SNRs (Urosevic+, 2005)
J/ApJ/747/L19 : A search for SNR 0519-69.0 progenitors (Edwards+, 2012)
J/ApJ/779/L6 : 3D kinematic obs. of stars in Galactic Centre (Do+, 2013)
J/MNRAS/439/354 : Sources around Tycho's Supernova 1572 (Bedin+, 2014)
J/ApJS/215/9 : PHAT X. UV-IR photometry of M31 stars (Williams+, 2014)
J/ApJ/808/106 : NIR spec. obs. in the Galactic Center (Stostad+, 2015)
J/MNRAS/464/194 : Metallicity distribution in the GC (Feldmeier-Krause+, 2017)
J/A+A/602/A85 : SN 1998bw MUSE datacube (Kruehler+, 2017)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 A13 --- SNR SNR name
15- 15 I1 h RAh Hour of right ascension (J2000)
17- 18 I2 min RAm Minute of right ascension (J2000)
20- 24 F5.2 s RAs Second of right ascension (J2000)
26 A1 --- DE- Sign of declination (J2000)
27- 28 I2 deg DEd Degree of declination (J2000)
30- 31 I2 arcmin DEm Arcminute of declination (J2000)
33- 37 F5.2 arcsec DEs Arcsecond of declination (J2000)
39- 43 A5 --- Filt Filter
45- 53 A9 --- Inst HST instrument
55- 65 A11 "date" Date Date of observation (UT)
67- 70 I4 s Exp [750/4757] Exposure time
72- 77 A6 --- PI PI name
79- 83 I5 --- PID [12017/13282] HST proposal ID
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Byte-by-byte Description of file: table[469].dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Seq [1/973] Internal stellar index number
within SNR
5- 6 I2 h RAh [5] Hour of Right Ascension (J2000)
8- 9 I2 min RAm [5/47] Minute of Right Ascension (J2000)
11- 16 F6.3 s RAs Second of Right Ascension (J2000)
18 A1 --- DE- [-] Sign of the Declination (J2000)
19- 20 I2 deg DEd [67/70] Degree of Declination (J2000)
22- 23 I2 arcmin DEm Arcminute of Declination (J2000)
25- 29 F5.2 arcsec DEs Arcsecond of Declination (J2000)
31- 35 F5.2 mag Bmag [17/23.6] Apparent B band magnitude
37- 40 F4.2 mag e_Bmag [0/0.02] Uncertainty in Bmag
42- 46 F5.2 mag Vmag [16.59/23.02] Apparent V band magnitude
48- 51 F4.2 mag e_Vmag [0/0.02] Uncertainty in Vmag
53- 57 F5.2 mag Imag [14.97/22.3] Apparent I band magnitude
59- 62 F4.2 mag e_Imag [0/0.02] Uncertainty in Imag
64- 68 F5.2 mag B-V [0/0.81] The (B-V) color index
70- 73 F4.2 mag e_B-V [0/0.02] Uncertainty in B-V
75- 78 F4.2 mag V-I [0.06/2.83] The (V-I) color index
80- 83 F4.2 mag e_V-I [0/0.02] Uncertainty in V-I
85- 89 F5.2 arcsec Rad [0.6/40] Distance to site of SN explosion
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 12-Apr-2021