J/ApJS/153/429 SDSS strong emission line HII galaxies (Kniazev+, 2004)
Strong emission line HII galaxies in the Sloan Digital Sky Survey.
I. Catalog of DR1 objects with oxygen abundances from Te measurements.
Kniazev A.Y., Pustilnik S.A., Grebel E.K., Lee H., Pramskij A.G.
<Astrophys. J. Suppl. Ser., 153, 429-445 (2004)>
=2004ApJS..153..429K 2004ApJS..153..429K
ADC_Keywords: Galaxy catalogs ; Abundances ; H II regions
Keywords: catalogs - galaxies: abundances - galaxies: dwarf -
galaxies: starburst - stars: Wolf-Rayet
Abstract:
We present the first edition of the SDSS HII galaxies with Oxygen
abundances Catalog (SHOC), which is a listing of strong emission-line
galaxies (ELGs) from the Sloan Digital Sky Survey (SDSS, see
http://www.sdss.org). We present 612 SDSS emission-line galaxies (624
separate SDSS targets in total), for which the oxygen abundances
12+log(O/H) have rms uncertainties ≤0.20dex. The subsample of 263
ELGs (272 separate SDSS targets) have an uncertainty ≤0.10dex, while
459 ELGs (470 separate SDSS targets) have an uncertainty ≤0.15dex.
The catalog includes the main parameters of all selected ELGs, the
intensities and equivalent widths of hydrogen and oxygen emission
lines, as well as oxygen abundances with their uncertainties. The
information on the presence of Wolf-Rayet blue and/or red bumps in 109
galaxies is also included. With the use of combined g, r, i SDSS
images we performed visual morphological classification of all SHOC
galaxies. Four hundred sixty-one galaxies (75%) are classified as
confident or probable blue compact galaxies (BCG/BCG?), 78 as
irregular ones, 20 as low surface brightness galaxies (LSBG), 10 as
obviously interacting, and 43 as spiral galaxies. In creating the
catalog, 30 narrow-line active galactic nuclei and 69 LINERs were also
identified; these are also presented apart of the main catalog.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 125 638 General parameters of the Strong Emission Line
HII galaxies from SDSS DR1 with an oxygen
abundance accuracy of ≤0.2dex
table2.dat 145 624 Observed Relative Emission Line Fluxes and Errors
table3.dat 160 624 Corrected Relative Emission Line Fluxes and Errors
table4.dat 70 624 Oxygen Abundances in SHOC galaxies
table6.dat 84 99 General Parameters of Strong Narrow-Line AGN and
LINERs from SDSS DR1
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See also:
http://www.sdss.org/ : The Sloan Digital Sky Survey home page
J/AJ/126/2579 : SDSS quasar catalog. II. First data release (Schneider+, 2003)
VII/171 : Michigan Emission-Line Objects (MacAlpine+ 1977-1982)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- SHOC SDSS HII-galaxies with Oxygen abundance
Catalog ID (G1)
6 A1 --- f_SHOC [cde] Flag on SHOC (1)
8- 11 A4 --- --- [SDSS]
13- 31 A19 --- SDSS SDSS name
33- 35 I3 --- Plate Plate number
37- 43 I7 d Mean Julian Date of observation
45- 47 I3 --- Fiber Fiber number
49- 53 F5.2 mag rmag SDSS r band magnitude
55- 61 F7.5 --- z Redshift
63- 64 A2 --- WR Wolf_Rayet galaxy flag (2)
66- 69 I4 --- Trun Truncation flag (3)
71- 78 A8 --- Class Morphological class
80-125 A46 --- Comm Additional comments (cross-identifications)
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Note (1): Flag on SHOC, defined as follows:
c = SHOC 11 was selected as a Sy 2 galaxy (LBQS 0018+0036) by Lewis,
McAlpine, & Weedman (1979ApJ...233..787L 1979ApJ...233..787L), and is assigned as an AGN in
NED. However, from both Terlevich et al. (1991, Cat. J/A+AS/91/285)
(UM 228) and from SDSS data this is classified as an HII galaxy.
d = SHOC 56 is not UM 311 as identified in NED, but is another
superassociation in the spiral galaxy NGC 0450 as seen by comparing
SDSS images with those in MacAlpine & Lewis (1978, Cat. VII/171).
e = SHOC 193b (SDSS J081447.52+490400.8) has very strong lines. This is a
giant HII region on the periphery of a nearby SA(s)cd galaxy NGC 2541,
also known as HS 0811+4913 Pustilnik et al. (1999,
Cat. J/A+AS/137/299). For this object, both [OIII](4959 and 5007)
were truncated, while Hα and Hβ are not. To correct an
oxygen abundance the intensity ratio [OIII](5007)/Hβ=7.37 was taken
from Pustilnik et al. (1999, Cat. J/A+AS/137/299).
Note (2): The Wolf_Rayet galaxy flag has the following meaning:
1 = only the "blue" bump detected
2 = only the "red" bump detected
3 = both bumps are detected
* = WR galaxies from Schaerer, Contini & Pindao (1999, Cat. J/A+AS/136/35)
+ = WR galaxies from the list of suspected WR galaxies in Schaerer, Contini
& Pindao (1999, Cat. J/A+AS/136/35)
Note (3): If "1" is in any of the four positions, this indicates that the
intensity of Hβ, [OIII](4959), [OIII](5007), or Hα,
respectively, was corrected; see Section 3 for details.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- SHOC SDSS HII-galaxies with Oxygen abdundance
Catalog ID (G1)
6- 10 F5.1 --- [OII]3727 ?3727Å[OII]/Hβ emission (G2)
12- 15 F4.1 --- e_[OII]3727 ? Error in [OII]3727
17- 20 F4.1 --- H10 ? 3798ÅH10/Hβ emission (G2)
22- 24 F3.1 --- e_H10 ? Error in H10
26- 28 F3.1 --- H9 ? 3835ÅH9/Hβ emission (G2)
30- 32 F3.1 --- e_H9 ? Error in H9
34- 37 F4.1 --- Hd ? 4101ÅHδ/Hβ emission (G2)
39- 41 F3.1 --- e_Hd ? Error in Hd
43- 46 F4.1 --- Hg 4340ÅHγ/Hβ emission (G2)
48- 50 F3.1 --- e_Hg Error in Hg
52- 55 F4.1 --- [OIII]4363 4363Å[OIII]/Hβ emission (G2)
57- 59 F3.1 --- e_[OIII]4363 Error in [OIII]4363
61- 65 F5.1 --- Hb [100] 4861ÅHβ reference (G2)
67- 69 F3.1 --- e_Hb Error in Hb
71- 75 F5.1 --- [OIII]4959 4959Å[OIII]/Hβ emission (G2)
77- 80 F4.1 --- e_[OIII]4959 Error in [OIII]4959
82- 86 F5.1 --- [OIII]5007 5007Å[OIII]/Hβ emission (G2)
88- 91 F4.1 --- e_[OIII]5007 Error in [OIII]5007
93- 97 F5.1 --- Ha 6563ÅHα/Hβ emission (G2)
99-102 F4.1 --- e_Ha Error in Ha
104-107 F4.1 --- [SII]6716 6716Å[SII]/Hβ emission (G2)
109-112 F4.1 --- e_[SII]6716 ? Error in [SII]6716
114-117 F4.1 --- [SII]6731 6731Å[SII]/Hβ emission (G2)
119-122 F4.1 --- e_[SII]6731 ? Error in [SII]6731
124-127 F4.1 --- [OIII]7320+ ? (7320+7330)[OIII]/Hβ emission (G2)
129-131 F3.1 --- e_[OIII]7320+ ? Error in [OIII]7320+
133-137 F5.1 0.1nm EWHb Hβ equivalent width in Angstroms
139-144 F6.2 10-18W/m2 FHb Hβ flux in units of
10-15erg/s/cm2
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- SHOC SDSS HII-galaxies with Oxygen abundance
Catalog ID (G1)
6- 10 F5.1 --- [OII]3727 ? 3727Å[OII]/Hβ emission (G2)
12- 15 F4.1 --- e_[OII]3727 ? Error in [OII]3727
17- 20 F4.1 --- H10 ? 3798ÅH10/Hβ emission (G2)
22- 25 F4.1 --- e_H10 ? Error in H10
27- 30 F4.1 --- H9 ? 3835ÅH9/Hβ emission (G2)
32- 35 F4.1 --- e_H9 ? Error in H9
37- 40 F4.1 --- Hd ? 4101ÅHδ/Hβ emission (G2)
42- 45 F4.1 --- e_Hd ? Error in Hd
47- 50 F4.1 --- Hg 4340ÅHγ/Hβ emission (G2)
52- 54 F3.1 --- e_Hg Error in Hg
56- 59 F4.1 --- [OIII]4363 4363Å[OIII]/Hβ emission (G2)
61- 63 F3.1 --- e_[OIII]4363 Error in [OIII]4363
65- 69 F5.1 --- Hb [100] 4861ÅHβ reference (G2)
71- 73 F3.1 --- e_Hb Error in Hb
75- 79 F5.1 --- [OIII]4959 4959Å[OIII]/Hβ emission (G2)
81- 84 F4.1 --- e_[OIII]4959 Error in [OIII]4959
86- 90 F5.1 --- [OIII]5007 5007Å[OIII]/Hβ emission (G2)
92- 95 F4.1 --- e_[OIII]5007 Error in O5007
97-101 F5.1 --- Ha 6563ÅHα/Hβ emission (G2)
103-106 F4.1 --- e_Ha Error in Ha
108-111 F4.1 --- [SII]6716 ? 6716Å[SII]/Hβ emission (G2)
113-116 F4.1 --- e_[SII]6716 ? Error in [SII]6716
118-121 F4.1 --- [SII]6731 ? 6731Å[SII]/Hβ emission (G2)
123-126 F4.1 --- e_[SII]6731 ? Error in [SII]6731
128-131 F4.1 --- [OIII]7320+ ? (7320+7330)[OIII]/Hβ emission (G2)
133-135 F3.1 --- e_[OIII]7320+ ? Error in [OIII]7320+
137-141 F5.3 --- C(Hb) Hβ extinction coefficient
143-147 F5.3 --- e_C(Hb) Error in C(Hb)
149-153 F5.3 0.1nm EWBa Equivalent width of underlying absorption
in Balmer lines
155-159 F5.3 0.1nm e_EWBa Error in EWBa
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- SHOC SDSS HII-galaxies with Oxygen abundances
Catalog ID (G1)
6- 10 I5 K T[OIII] Effective temperature from [OIII]
12- 15 I4 K e_T[OIII] Error in T[OIII]
17- 21 I5 K T[OII] Effective temperature from [OII]
23- 26 I4 K e_T[OII] Error in T[OII]
28 A1 --- l_Ne Limit flag on Ne
29- 32 I4 cm-3 Ne Electron density from [SII]
34- 37 I4 cm-3 e_Ne ? Error in Ne
39- 42 F4.2 10-5 O+/H+ O+/H+ abundance ratio
44- 47 F4.2 10-5 e_O+/H+ Error in O+/H+
49- 53 F5.2 10-5 O++/H+ O++/H+ abundance ratio
55- 59 F5.2 10-5 e_O++/H+ Error in O++/H+
61- 64 F4.2 [-] log(O/H) Log of the O/H abundance plus 12
66- 69 F4.2 [-] e_log(O/H) Error in log(O/H)
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- ID Entry number
4- 7 A4 --- --- [SDSS]
9- 27 A19 --- SDSS SDSS name
29- 31 I3 --- Plate Plate number
33- 39 I7 d Mean Julian Date of observation
41- 43 I3 --- Fiber Fiber number
45- 49 F5.2 mag rmag SDSS r band magnitude
51- 57 F7.5 --- z Redshift
59- 63 A5 --- Type Source classification
65- 84 A20 --- Comm Comment (cross-identifications)
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Global Notes:
Note (G1): The number of individual galaxy in the SHOC catalog. Letters "a"
and "b" indicate separate regions within the same galaxy.
Note (G2): In the scale 100*I(λ)/I(Hβ)
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 04-May-2005