J/ApJ/788/55 HST/WFC3 SNR discoveries in M83 (NGC5236) (Blair+, 2014)
An expanded HST/WFC3 survey of M83:
project overview and targeted supernova remnant search.
Blair W.P., Chandar R., Dopita M.A., Ghavamian P., Hammer D., Kuntz K.D.,
Long K.S., Soria R., Whitmore B.C., Frank Winkler P.
<Astrophys. J., 788, 55 (2014)>
=2014ApJ...788...55B 2014ApJ...788...55B
ADC_Keywords: Photometry, HST ; Cross identifications ; X-ray sources ;
Supernova remnants ; Surveys ; Galaxies, nearby
Keywords: galaxies: ISM; galaxies: individual: M83; ISM: supernova remnants
Abstract:
We present an optical/NIR imaging survey of the face-on spiral galaxy
M83, using data from the Hubble Space Telescope Wide Field Camera 3
(WFC3). Seven fields are used to cover a large fraction of the inner
disk, with observations in nine broadband and narrowband filters. In
conjunction with a deep Chandra survey and other new radio and optical
ground-based work, these data enable a broad range of science projects
to be pursued. We provide an overview of the WFC3 data and processing
and then delve into one topic, the population of young supernova
remnants (SNRs). We used a search method targeted toward soft X-ray
sources to identify 26 new SNRs. Many compact emission nebulae
detected in [FeII]1.644µm align with known remnants and this
diagnostic has also been used to identify many new remnants, some of
which are hard to find with optical images. We include 37 previously
identified SNRs that the data reveal to be <0.5" in angular size and
thus are difficult to characterize from ground-based data. The
emission line ratios seen in most of these objects are consistent with
shocks in dense interstellar material rather than showing evidence of
ejecta. We suggest that the overall high elemental abundances in
combination with high interstellar medium pressures in M83 are
responsible for this result.
Description:
The approximate field coverage for the HST WFC3/UVIS camera fields of
view is shown projected onto a ground-based image of M83 in Figure 1.
Seven fields were observed in F336W (U), F438w (B), F502N ([OIII]),
F547M (y), F657N (Hα+[NII]), F673N ([SII]), F814W (I),
F164N ([FeII]) and F160W (H) filters from 2009 Aug 20 to 2012 Sep 6.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 123 63 Small diameter and new supernova remnants in M83
revealed by HST/WFC3
table4.dat 171 63 M83 supernova remnant WFC3 image ratios and
supporting information
--------------------------------------------------------------------------------
See also:
B/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)
B/hst : HST Archived Exposures Catalog (STScI, 2007)
B/chandra : The Chandra Archive Log (CXC, 1999-2014)
I/322 : UCAC4 Catalogue (Zacharias+, 2012)
J/ApJS/212/21 : A deep Chandra ACIS survey of M83 (Long+, 2014)
J/A+A/553/A7 : XMM sources in M83 (NGC5236) (Ducci+, 2013)
J/ApJS/208/10 : κ-distribution effects in HII regions (Dopita+, 2013)
J/ApJS/203/8 : Optical SNR candidates in M83 (Blair+, 2012)
J/MNRAS/414/3084 : Multi-waveband analysis of 12um galaxies (Brightman+, 2011)
J/ApJS/187/495 : SNRs in M33 from optical and X-ray (Long+, 2010)
J/ApJ/706/599 : Hα and UV SFR in the local volume (Lee+, 2009)
J/ApJ/706/553 : Fluxes in nearby star-forming galaxies (Boquien+, 2009)
J/ApJ/695/580 : Oxygen abundance in M83 (Bresolin+, 2009)
J/ApJS/178/247 : Hα and [NII] survey in local 11 Mpc (Kennicutt+, 2008)
J/A+A/439/265 : Wolf-Rayet population in M83 (Hadfield+, 2005)
J/A+A/416/537 : UBVI and HST phot. of young stellar clusters (Larsen, 2004)
J/ApJ/602/231 : Chandra X-ray sources in nearby galaxies (Colbert+, 2004)
J/A+A/410/53 : M83 X-ray sources (Soria+, 2003)
http://www.stsci.edu/hst : HST STSci home page
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Seq [1/63] Running sequence number
(<[BCD2014] NN> in Simbad)
4- 10 A7 --- AName Previous name (G1)
12- 13 I2 h RAh Hour of right ascension (J2000)
15- 16 I2 min RAm Minute of right ascension (J2000)
18- 22 F5.2 s RAs Second of right ascension (J2000)
24 A1 --- DE- Sign of declination (J2000)
25- 26 I2 deg DEd Degree of declination (J2000)
28- 29 I2 arcmin DEm Arcminute of declination (J2000)
31- 35 F5.2 arcsec DEs Arcsecond of declination (J2000)
37- 40 F4.2 arcsec Rad [0.07/0.8] Source radius
42- 45 F4.1 pc Diam [3.1/34.3] Source diameter (1)
47- 50 F4.2 kpc GCD [0.1/5.3] Galactocentric distance (1)
52 I1 --- Field [1/7] WFC3 field number
54 A1 --- l_F657N Limit flag on F657N
56- 63 E8.3 mW/m2 F657N The F657N flux in erg/cm2/s (G2)
65 A1 --- l_F673/657 Limit flag on F673/657
67- 70 F4.2 --- F673/657 [0.06/6.6]? Lower limit to the observed
F673N/F657N (F([SII])/F(Hα)) ratio (G3)
72-123 A52 --- Comm Comments
--------------------------------------------------------------------------------
Note (1): The galactocentric distances (GCDs) of each object are based on the
same assumptions for galactic inclination and major axis angle as
used in Blair et al. (2012, Cat. J/ApJS/203/8) and the assumed
distance of 4.61Mpc.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Seq [1/63] Running sequence number
(<[BCD2014] NN> in Simbad)
4- 10 A7 --- AName Previous name (G1)
12 A1 --- l_F657N Limit flag on F657N
14- 21 E8.3 mW/m2 F657N The F657N flux in erg/cm2/s (G2)
23- 29 E7.2 mW/m2 F164N ? The F164N flux (objects showing only [FeII]
emission) (G2)
31 A1 --- l_F673/657 Limit flag on F673/657
33- 36 F4.2 --- F673/657 [0.06/6.6]? Lower limit to the observed
F673N/F657N (F([SII])/F(Hα)) ratio (G3)
38 A1 --- l_F164/657 Limit flag on F164/657
40- 44 F5.2 --- F164/657 [0.01/10]? Lower limit to the observed
F([FeII])/F(Hα) ratio (G3)
46 A1 --- l_F164/673 Limit flag on F614/673
48- 51 F4.2 --- F164/673 [0.01/4.86]? Lower limit to the observed
F([FeII]])/F([SII]) ratio
53 A1 --- l_F502/657 Limit flag on F502/657
55- 59 F5.2 --- F502/657 ? Lower limit to the observed
F([OIII])/F(Hα) ratio (G3)
60 A1 --- u_F502/657 Uncertainty flag on F502/657
62- 65 A4 --- XID X-Ray ID in Chandra (2)
66 A1 --- u_XID Uncertainty flag on XID
(less reliable alignments)
68-171 A104 --- Comm Comments
--------------------------------------------------------------------------------
Note (2): X-ray ID from Chandra catalog of Long et al. 2014 (J/ApJS/212/21);
<[LKB2014] XNNN> in Simbad.
--------------------------------------------------------------------------------
Global notes:
Note (G1): Reference for previous names
(empty entries indicate new objects from this survey):
B12 = Magellan catalog of Blair et al. (2012, J/ApJS/203/8;
<[BWL2012] NNN> in Simbad);
D10 = Dopita et al. (2010ApJ...710..964D 2010ApJ...710..964D; <[DBL2010] M83-SNR-N-NN> in Simbad).
Note (G2): F657N includes both Hα and [NII]6548,6583. For objects only
showing [FeII] emission, the F164N flux is given.
Note (G3): Only a lower limit to the actual line ratios of interest due to
[NII] contamination in F657N filter.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 30-Oct-2014