Investigating Hα, UV, and IR Star-formation Rate Diagnostics for a Large Sample of z ∼ 2 Galaxies

@article{Shivaei2015InvestigatingHU,
  title={Investigating H$\alpha$, UV, and IR Star-formation Rate Diagnostics for a Large Sample of z ∼ 2 Galaxies},
  author={I. Shivaei and N. Reddy and C. Steidel and A. Shapley},
  journal={The Astrophysical Journal},
  year={2015},
  volume={804},
  pages={149}
}
We use a sample of 262 spectroscopically confirmed star-forming galaxies at redshifts 2.08 ≤ z ≤ 2.51 to compare Hα, ultraviolet (UV), and IR star formation rate (SFR) diagnostics and to investigate the dust properties of the galaxies. At these redshifts, the Hα line shifts to the K_s band. By comparing K_s-band photometry to underlying stellar population model fits to other UV, optical, and near-infrared data, we infer the Hα flux for each galaxy. We obtain the best agreement between Hα- and… Expand

Figures and Tables from this paper

Inferred Hα Flux as a Star Formation Rate Indicator at z ~ 4-5 : Implications for Dust Properties, Burstiness, and the z = 4-8 Star Formation Rate Functions
We derive Hα fluxes for a large spectroscopic and photometric-redshift-selected sample of sources over GOODSNorth and South in the redshift range z = 3.8–5.0 with deep Hubble Space Telescope (HST),Expand
DUST ATTENUATION OF THE NEBULAR REGIONS OF z ∼ 2 STAR-FORMING GALAXIES: INSIGHT FROM UV, IR, AND EMISSION LINES
We use a sample of 149 spectroscopically confirmed UV-selected galaxies at $z\sim 2$ to investigate the relative dust attenuation of the stellar continuum and the nebular emission lines. For eachExpand
On the different levels of dust attenuation to nebular and stellar light in star-forming galaxies
As a science verification study of the newly released AKARI/FIS Faint Source Catalog ver.1, this paper discusses the different levels of dust attenuation toward stellar light and nebular emissionExpand
HST Emission Line Galaxies at z ~ 2: Comparing Physical Properties of Lyman Alpha and Optical Emission Line Selected Galaxies
We compare the physical and morphological properties of z ~ 2 Lyman-alpha emitting galaxies (LAEs) identified in the HETDEX Pilot Survey and narrow band studies with those of z ~ 2 optical emissionExpand
The MOSDEF Survey: Measurements of Balmer Decrements and the Dust Attenuation Curve at Redshifts z~1.4-2.6
We present results on the dust attenuation curve of z~2 galaxies using early observations from the MOSFIRE Deep Evolution Field (MOSDEF) survey. Our sample consists of 224 star-forming galaxies withExpand
NEBULAR AND STELLAR DUST EXTINCTION ACROSS THE DISK OF EMISSION-LINE GALAXIES ON KILOPARSEC SCALES
We investigate the resolved kiloparsec-scale stellar and nebular dust distribution in eight star-forming galaxies at z similar to 0.4 in the Great Observatories Origins Deep Survey fields. This is toExpand
Spectroscopic Study of Star-forming Galaxies in Filaments and the Field at $z\sim$0.5: Evidence for Environmental Dependence of Electron Density
We study the physical properties of a spectroscopic sample of 28 star-forming galaxies in a large filamentary structure in the COSMOS field at $z\sim$0.53, with spectroscopic data taken with theExpand
A panchromatic spatially resolved analysis of nearby galaxies – I. Sub-kpc-scale main sequence in grand-design spirals
We analyse the spatially resolved relation between stellar mass (M$_{\star}$) and star formation rate (SFR) in disk galaxies (i.e. the Main Sequence, MS). The studied sample includes eight nearbyExpand
Evolution of Intrinsic Scatter in the SFR-Stellar Mass Correlation at 0.5
We present estimates of intrinsic scatter in the Star Formation Rate (SFR) - Stellar Mass (M*) correlation in the redshift range 0.5 < z < 3.0 and in the mass range 10^7 < M* < 10^11 Msun. We utilizeExpand
SHARDS: A GLOBAL VIEW OF THE STAR FORMATION ACTIVITY AT z ∼ 0.84 and z ∼ 1.23
In this paper, we present a comprehensive analysis of star-forming galaxies (SFGs) at intermediate redshifts (z ~ 1). We combine the ultra-deep optical spectro-photometric data from the Survey forExpand
...
1
2
3
4
...

References

SHOWING 1-10 OF 57 REFERENCES
Obscured star formation at z= 0.84 with HiZELS: the relationship between star formation rate and Hα or ultraviolet dust extinction★
We compare Hα, ultraviolet (UV) and infrared (IR) indicators of star formation rate (SFR) for a well-defined sample of z = 0.84 emission-line galaxies from the High-. z Emission Line Survey (HiZELS).Expand
Hα Observations of a Large Sample of Galaxies at z ~ 2: Implications for Star Formation in High-Redshift Galaxies
Using Hα spectra of 114 rest-frame UV-selected galaxies at z ~ 2, we compare inferred star formation rates (SFRs) with those determined from the UV continuum luminosity. After correcting forExpand
Empirical determination of the shape of dust attenuation curves in star-forming galaxies
We present a systematic study of the shape of the dust attenuation curve in star-forming galaxies from the far-ultraviolet (far-UV) to the near-infrared (NIR; ∼0.15–2 μm), as a function of specificExpand
3D-HST Emission Line Galaxies at z ~ 2: Discrepancies in the Optical/UV Star Formation Rates
We use Hubble Space Telescope near-IR grism spectroscopy to examine the H-beta line strengths of 260 star-forming galaxies in the redshift range 1.90 < z < 2.35. We show that at these epochs, theExpand
DUST OBSCURATION AND METALLICITY AT HIGH REDSHIFT: NEW INFERENCES FROM UV, Hα, AND 8 μm OBSERVATIONS OF z ∼ 2 STAR-FORMING GALAXIES*
We use a sample of 90 spectroscopically confirmed Lyman break galaxies with Hα measurements and Spitzer MIPS 24 μm observations to constrain the relationship between rest-frame 8 μm luminosity (L_8)Expand
Ultraviolet to Mid-Infrared Observations of Star-forming Galaxies at z ~ 2: Stellar Masses and Stellar Populations*
We present the broadband UV through mid-infrared spectral energy distributions (SEDs) of a sample of 72 spectroscopically confirmed star-forming galaxies at z = 2.30 ? 0.3. Located in a 72 arcmin2Expand
THE STRUCTURE AND KINEMATICS OF THE CIRCUMGALACTIC MEDIUM FROM FAR-ULTRAVIOLET SPECTRA OF z ≃ 2-3 GALAXIES*
We present new results on the kinematics and spatial distribution of metal-enriched gas within ~125 kpc of star-forming ("Lyman break") galaxies at redshifts 2 ≲ z ≲ 3. In particular, we focus onExpand
Star Formation and Extinction in Redshift z~2 Galaxies: Inferences from Spitzer MIPS Observations*
We use very deep Spitzer MIPS 24 ?m observations to examine the bolometric luminosities (Lbol) and UV extinction properties of more than 200 spectroscopically identified, optically selected (UnG) z ~Expand
The Star formation history of field galaxies
We develop a method for interpreting faint galaxy data which focuses on the integrated light radiated from the galaxy population as a whole. The emission history of the universe at ultraviolet,Expand
Star formation rate in galaxies from UV, IR, and Hα estimators
Infrared (IR) luminosity of galaxies originating from dust thermal emission can be used as an indicator of the star formation rate (SFR). Inoue et al. ([CITE], IHK) have derived a formula for theExpand
...
1
2
3
4
5
...