J/ApJ/943/15 GMOS spectra of 119 SNRs in M83 (Winkler+, 2023)
High-resolution spectra of supernova remnants in M83.
Winkler P.F., Long K.S., Blair W.P., Points S.D.
<Astrophys. J., 943, 15 (2023)>
=2023ApJ...943...15W 2023ApJ...943...15W
ADC_Keywords: Supernova remnants; Spectra, optical; Stars, diameters
Keywords: Supernova remnants ; Interstellar medium ; Nebulae
Abstract:
In order to better characterize the rich supernova remnant (SNR)
population of M83 (NGC 5236), we have obtained high-resolution
(∼85km/s) spectra of 119 of the SNRs and SNR candidates in M83 with
Gemini/GMOS, as well as new spectra of the young SNRs B12-174a and
SN1957D. Most of the SNRs and SNR candidates have [SII]:Hα
ratios that exceed 0.4. Combining these results with earlier studies
we have carried out with MUSE and at lower spectroscopic resolution
with GMOS, we have confirmed a total of 238 emission nebulae to be
SNRs on the basis of their [SII]:Hα ratios, about half of which
have emission lines that show velocity broadening greater than
100km/s, providing a kinematic confirmation that they are SNRs and not
HII regions. Looking at the entire sample, we find a strong
correlation between velocity widths and the line ratios of
[OI]λ6300:Hα, [NII]λ6584:Hα, and
[SII]λλ6716,6731:Hα. The density-sensitive
[SII]λ6716:λ6731 line ratio is strongly correlated with
SNR diameter, but not with the velocity width. We discuss these
results in the context of previously published shock models.
Description:
Our observations were carried out using GMOS on Gemini-S during the
2019 May, 2020 Feb, and 2021 Feb and Jun (Program IDs GS-2019A-Q-303,
GS-2020A-Q-202 and GS-2021A-Q-235).
In all cases the 6000-7000Å range was covered. This ensured that
measurements of [OI]λλ6300,6363,
[NII]λλ6548,6583, Hα, and
[SII]λλ6716,6731 would be obtained for all objects.
See Section 2.
Objects:
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RA (ICRS) DE Designation(s)
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13 37 00.9 -29 51 57 M83 = ESO 444-81
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 89 119 M83 SNR and SNR candidate spectra
table5.dat 79 366 Properties of supernova remnants and candidates
in M83
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See also:
J/ApJS/203/8 : Optical SNR candidates in M83 (Blair+, 2012)
J/ApJ/788/55 : HST/WFC3 SNR discoveries in M83 (NGC5236) (Blair+, 2014)
J/ApJS/212/21 : A deep Chandra ACIS survey of M83 (Long+, 2014)
J/ApJ/839/83 : GMOS sp. obs. of SNR candidates in M83 (Winkler+, 2017)
J/ApJ/855/140 : MMT spectra of SNRs and SNR candidates in M33 (Long+, 2018)
J/ApJ/881/54 : Masses of SNR progenitors in M83 (Williams+, 2019)
J/ApJ/899/14 : Opt. & FeII sources in SNR with HST (Long+, 2020)
J/MNRAS/508/5425 : Study of NGC 300 objects with dendogram (McLeod+, 2021)
J/ApJ/929/144 : SNR and HII regions in M83 observed with MUSE (Long+, 2022)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Source identifier (G1)
11- 16 F6.1 10-17mW/m2 FHa [7/2260] Hα flux; 1e-17erg/cm2/s
18- 21 F4.1 10-17mW/m2 e_FHa [0.1/22] Uncertainty in FHa
23- 27 F5.1 --- FOI6300 [0/149.4] The [OI]6300Å flux (1)
29- 32 F4.1 --- e_FOI6300 [0.1/13.1] Uncertainty in FOI6300
34- 36 I3 --- Ha [300] The Hα normalization value
38- 42 F5.1 --- FNII6584 [81/815] The [NII]6584 flux (1)
44- 47 F4.1 --- e_FNII6584 [1.5/13] Uncertainty in FNII6584
49- 53 F5.1 --- FSII671 [35/275.2] The [SII]6716 flux (1)
55- 58 F4.1 --- e_FSII671 [0.2/16.6] Uncertainty in FSII6716
60- 64 F5.1 --- FSI6731 [27/264] The [SII]6731 flux (1)
66- 69 F4.1 --- e_FSI6731 [0.2/14.3] Uncertainty in FSI6731
71- 74 F4.2 0.1nm FWHM-Ha [1.96/8.44] Hα line FWHM; Angstroms
76- 79 F4.2 0.1nm e_FWHM-Ha [0.01/0.2] Uncertainty in FWHM-Ha
81- 84 F4.2 0.1nm FWHM-SII [1.92/8.1] The [SII] line FWHM; Angstroms
86- 89 F4.2 0.1nm e_FWHM-SII [0.01/0.7] Uncertainty in FWHM-SII
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Note (1): Ratio to Hα flux where, by convention,
Hα is normalized to 300.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Source identifier (G1)
11- 19 F9.5 deg RAdeg [204.16/204.33] Right Ascension (J2000)
21- 29 F9.5 deg DEdeg [-30/-29.77] Right Ascension (J2000)
31- 32 I2 pc Diam [1/97] Diameter (1)
34- 36 F3.1 kpc Rgc [0/8.8] Distance from galactic center
38- 41 A4 --- X-ray X-ray source (2)
43- 45 A3 --- FeII In HST F164N [FeII] imagery? (3)
47- 51 A5 --- Spectra Source of spectra, if any (4)
53- 57 A5 --- SII/Ha Source with [SII]/Ha ratio >0.4 (4)
59- 63 A5 --- OI Source with [OI]/Ha ratio >3.3% (4)
65- 69 A5 --- Vel Shows deconvolved velocity broadening >100km/s
(4)
71- 79 A9 --- Comm Additional comments
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Note (1): A 1 indicates an upper limit of 1pc.
Note (2): X-ray sources in the Long+ 2014, J/ApJS/212/21 Chandra catalog
within 1" of an SNR candidate (<[LKB2014] XNNN> in Simbad).
Note (3): YES indicates sources candidates that were first identified as
candidates based on [FeII], while yes indicates that the source was
detected in [FeII], but identified by other means. Sources that
were in the region covered by the HST [FeII] images but which were
not detected are listed as no. The remainder of the sources were
outside the region covered in the [FeII images.
Note (4): For the various SNRs and candidates. Code as follows:
GL = observed by Winkler+ (2017, J/ApJ/839/83) using GMOS at low resolution
M = observed by Long+ (2022, J/ApJ/929/144) using MUSE
GH = from this work
All = spectra were obtained in all 3 sets of observations
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Global notes:
Note (G1): Source names beginning with B12, B14, D10 and L22 are from
Blair+ 2012, J/ApJS/203/8 (<[BWL2012] NNN> in Simbad),
Blair+ 2014, J/ApJ/788/55 (<[BCD2014] NN> in Simbad),
Dopita+ 2010ApJ...710..964D 2010ApJ...710..964D (<[DBL2010] M83-SNR-N-NN> in Simbad) and
Long+ 2022, J/ApJ/929/144, respectively.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 18-Nov-2024