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A slow bar in the dwarf irregular galaxy NGC 3741
Arunima Banerjee, Narendra Nath Patra, Jayaram N. Chengalur +1
Using the Tremaine-Weinberg method, we measure the speed of the HI bar seen in the disk of NGC 3741. NGC 3741 is an extremely gas rich galaxy with an {H\,{\sc i}} disk which extend…
The HI column density distribution function in faint dwarf galaxies
Narendra Nath Patra, Jayaram N. Chengalur, Ayesha Begum
We present the HI column density distribution function,\fnh, as measured from dwarf galaxies observed as part of the Faint Irregular Galaxy GMRT (FIGGS) survey. We find that the sh…
Small Bites: Star formation recipes in extreme dwarfs
Sambit Roychowdhury, Jayaram N. Chengalur, Serafim S. Kaisin +2
We study the relationship between the gas column density (Sigma_HI) and the star formation rate surface density (Sigma_SFR) for a sample of extremely small (M_B ~ -13, Delta V_50 ~…
The Calibration of Monochromatic Far-Infrared Star Formation Rate Indicators
D. Calzetti, S. -Y. Wu, S. Hong +23
(Abridged) Spitzer data at 24, 70, and 160 micron and ground-based H-alpha images are analyzed for a sample of 189 nearby star-forming and starburst galaxies to investigate whether…
Thick gas discs in faint dwarf galaxies
Sambit Roychowdhury, Jayaram N. Chengalur, Ayesha Begum +1
We determine the intrinsic axial ratio distribution of the 'gas' disks of extremely faint M_B > -14.5 dwarf irregular galaxies. We start with the measured (beam corrected) distribu…
The Spitzer Local Volume Legacy: Survey Description and Infrared Photometry
D. A. Dale, S. A. Cohen, L. C. Johnson +21
The survey description and the near-, mid-, and far-infrared flux properties are presented for the 258 galaxies in the Local Volume Legacy (LVL). LVL is a Spitzer Space Telescope l…