2024ApJ...977L...8C

Query : 2024ApJ...977L...8C

2024ApJ...977L...8C - Astrophys. J., 977, L8 (2024/December-2)

FAST H I 21 cm Study of Blueberry Galaxies.

CHANDOLA Y., TSAI C.-W., SAIKIA D.J., LI G., LI D. and MA Y.-Z.

Abstract (from CDS):

Green Peas (GPs) and blueberry galaxies (BBs) are thought to be local analogs (z < 0.1) of high redshift Lyα emitters. H I study of these can help us understand the star formation in the primordial Universe. In this Letter, we present the results of H I 21 cm study of 28 high specific star formation rate (sSFR ≳ 10–8yr –1) BBs at z ≲ 0.05 with the Five-hundred-meter Aperture Spherical radio Telescope. We report significant H I detection towards two BBs, namely J1026+0426 and J1132+0809, and discuss possible H I contribution from neighboring galaxies. The median 3σ upper limit of ∼2.0 × 108M⊙ was obtained on H I mass for galaxies with nondetections. We find BBs tend to have lower H I-to-stellar-mass ratio or gas fraction (f_H i_) than expected from f_H i_-sSFR and f_H i_-M* relations for main-sequence galaxies. The BBs also have a median 3σ upper limit on H I gas depletion timescale (τ_H i_) ∼ 0.5 Gyr, about 1 order of magnitude lower than τ_H i_ for local main-sequence galaxies. We find a significantly low H I detection rate of 2/28 (7.1${}_{-4.6}^{+9.4}$%) towards these galaxies, which is similar to previous H I studies of low redshift GPs of high ionization parameter indicator, O32 ≡ O[III]λ5007/O[II]λ3727 ratios ≳10.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Blue compact dwarf galaxies - Starburst galaxies - Galaxies - Radio spectroscopy - H I line emission

Simbad objects: 33

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Number of rows : 33
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ESO 350-38 Sy2 00 36 52.489 -33 33 17.23   14.31 14.41 13.49   ~ 450 0
2 SDSS J014653.30+031922.3 EmG 01 46 53.3211237648 +03 19 22.658516616           ~ 4 0
3 SDSS J021306.25+005610.5 G 02 13 06.25735 +00 56 10.5548           ~ 5 0
4 SDSS J021623.76+171525.9 EmG 02 16 23.767 +17 15 25.92           ~ 3 0
5 SDSS J023848.92+012433.4 EmG 02 38 48.922 +01 24 33.45           ~ 2 0
6 SDSS J035713.51+180845.5 EmG 03 57 13.5114391200 +18 08 45.456011916           ~ 3 0
7 SDSS J082019.26+543140.0 EmG 08 20 19.270 +54 31 40.07           ~ 4 0
8 SDSS J082540.44+184617.2 EmG 08 25 40.4479904808 +18 46 17.179801968           ~ 8 0
9 SDSS J082746.65+105911.1 EmG 08 27 46.6539590472 +10 59 11.269659696           ~ 3 0
10 SDSS J083737.22+182327.3 EmG 08 37 37.2287709168 +18 23 27.287253636           ~ 2 0
11 SDSS J092223.86+632436.9 EmG 09 22 23.864 +63 24 36.96           ~ 3 0
12 SDSS J092655.44+450432.2 EmG 09 26 55.4573578320 +45 04 32.433409164           ~ 4 0
13 SDSS J102638.07+042654.4 EmG 10 26 38.070 +04 26 54.43           ~ 2 0
14 LEDA 3999412 G 10 26 40.64764 +04 27 16.2691           ~ 8 0
15 SDSS J103256.72+491947.2 EmG 10 32 56.7271168728 +49 19 47.224240608           ~ 10 0
16 SDSS J103531.07+140019.1 EmG 10 35 31.078 +14 00 19.16           ~ 2 0
17 SDSS J111312.24+030112.8 EmG 11 13 12.2547981672 +03 01 12.811312524           ~ 3 0
18 LEDA 139572 EmG 11 23 48.9452851896 +20 50 31.198203384           ~ 7 0
19 SDSS J113259.13+080930.6 G 11 32 59.13218 +08 09 30.6633           ~ 1 0
20 SDSS J113259.26+080942.7 EmG 11 32 59.2684870704 +08 09 42.577258824           ~ 3 0
21 SDSS J113654.17+342727.9 EmG 11 36 54.1680134448 +34 27 27.823146804           ~ 3 0
22 SDSS J113900.41+004042.6 EmG 11 39 00.410 +00 40 42.60           ~ 5 0
23 SDSS J120016.49+271958.9 H2G 12 00 16.4880079176 +27 19 58.820331936           ~ 10 0
24 2QZ J132347.5-013252 EmG 13 23 47.4573498792 -01 32 52.048078188           ~ 49 0
25 SDSS J134756.00+075532.1 EmG 13 47 56.0175441504 +07 55 32.241768780       19.55   ~ 4 0
26 SDSS J135525.66+465151.3 EmG 13 55 25.6612180368 +46 51 51.397156440           ~ 8 0
27 SDSS J140043.44+195121.7 EmG 14 00 43.444 +19 51 21.72           ~ 3 0
28 SDSS J144441.37+040941.7 Sy1 14 44 41.3744101584 +04 09 41.673729996     19.58     ~ 5 0
29 LEDA 101527 EmG 15 09 34.174 +37 31 46.12   17.9       ~ 33 0
30 SDSS J155624.47+480645.7 EmG 15 56 24.4717313376 +48 06 45.771651576           ~ 4 0
31 SDSS J160212.56+144551.1 EmG 16 02 12.5611153800 +14 45 51.093855576           ~ 2 0
32 SDSS J160810.36+352809.3 EmG 16 08 10.3514480208 +35 28 09.370755984           ~ 19 0
33 SDSS J232031.80+122537.9 EmG 23 20 31.805 +12 25 37.93           ~ 2 0

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