Hubble Space Telescope Grism Spectroscopy of Extreme Starbursts Across Cosmic Time: The Role of Dwarf Galaxies in the Star Formation History of the Universe

Abstract

Near infrared slitless spectroscopy with the Wide Field Camera 3, onboard the Hubble Space Telescope, offers a unique opportunity to study low-mass galaxy populations at high-redshift ($z\sim$1-2). While most high$-z$ surveys are biased towards massive galaxies, we are able to select sources via their emission lines that have very-faint continua. We investigate the star formation rate (SFR)-stellar mass ($M_{\star }$) relation for about 1000 emission-line galaxies identified over a wide redshift range of $0.3\lesssim z\lesssim 2.3$. We use the H${}_{\alpha }$ emission as an accurate SFR indicator and correct the broadband photometry for the strong nebular contribution to derive accurate stellar masses down to $M_{\star }\sim 10^7{M}_{\odot }$. We focus here on a subsample of galaxies that show extremely strong emission lines (EELGs) with rest-frame equivalent widths ranging from 200 to 1500 Å. This population consists of outliers to the normal SFR-$M_{\star }$ sequence with much higher specific SFRs ($>10$ Gyr${}^{-1}$). While on-sequence galaxies follow a continuous star formation process, EELGs are thought to be caught during an extreme burst of star formation that can double their stellar mass in less than $100$ Myr. The contribution of starbursts to the total star formation density appears to be larger than what has been reported for more massive galaxies in previous studies. In the complete mass range $8.2<$ log($M_{\star }/M_{\odot }$) $<10$ and a SFR lower completeness limit of about 2 $M_{\odot }$ yr${}^{-1}$ (10 $M_{\odot }$ yr${}^{-1}$) at $z\sim 1$ ($z\sim 2$), we find that starbursts having EW${}_{rest}$(H${}_{\alpha }$)$>$ 300, 200, and 100 A contribute up to $\sim 13$, 18, and 34 %, respectively, to the total SFR of emission-line selected sample at $z\sim 1-2$. The comparison with samples of massive galaxies shows an increase in the contribution of starbursts towards lower masses.

arXiv comment11 pages, 6 figures. The Astrophysical Journal, in press

References in corpus (82)

• Stellar population synthesis at the resolution of 2003
• On the variation of the Initial Mass Function
• Star Formation in Galaxies Along the Hubble Sequence
• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• The Origin of the Mass--Metallicity Relation: Insights from 53,000 Star-Forming Galaxies in the SDSS
• The physical properties of star forming galaxies in the low redshift universe
• The Spitzer Space Telescope Mission
• Theoretical Modeling of Starburst Galaxies
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• CANDELS: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey
• CANDELS: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey - The Hubble Space Telescope Observations, Imaging Data Products and Mosaics
• High Redshift Galaxies in the Hubble Deep Field. Color Selection and Star Formation History to z=4
• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• Cold streams in early massive hot haloes as the main mode of galaxy formation
• A Simple Model for the Absorption of Starlight by Dust in Galaxies
• The hierarchical formation of the brightest cluster galaxies
• The reversal of the star formation-density relation in the distant universe
• Multiwavelength study of massive galaxies at z~2. I. Star formation and galaxy growth
• The Mass-Metallicity Relation at z~2
• An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2
• The Star-formation Mass Sequence out to z=2.5
• The lesser role of starbursts for star formation at z=2
• The Galactic disk mass function: reconciliation of the HST and nearby determinations
• Different star formation laws for disks versus starbursts at low and high redshifts
• The DEEP2 Galaxy Redshift Survey: Design, Observations, Data Reduction, and Redshifts
• Galaxy Structure and Mode of Star Formation in the SFR-Mass Plane from z ~ 2.5 to z ~ 0.1
• 3D-HST: A wide-field grism spectroscopic survey with the Hubble Space Telescope
• The star formation history of mass-selected galaxies in the COSMOS field
• The Impact of cold gas accretion above a mass floor on galaxy scaling relations
• The Chandra Deep Field-South Survey: 4 Ms Source Catalogs
• Galaxy Zoo Green Peas: Discovery of A Class of Compact Extremely Star-Forming Galaxies
• On the evolution of star forming galaxies
• The NEWFIRM Medium-band Survey: Photometric Catalogs, Redshifts and the Bimodal Color Distribution of Galaxies out to z~3
• Nebular Emission from Star-Forming Galaxies
• The Gemini Deep Deep Survey. VII. The Redshift Evolution of the Mass-Metallicity Relation
• The Chandra COSMOS Survey, I: Overview and Point Source Catalog
• Star formation and dust obscuration at z~2: galaxies at the dawn of downsizing
• Dust Obscuration and Metallicity at High Redshift: New Inferences from UV, H-alpha, and 8 Micron Observations of z~2 Star-Forming Galaxies
• CANDELS Multiwavelength catalogs: Source Identification and Photometry in the CANDELS UKIDSS Ultra-Deep Survey Field
• Rest-frame ultraviolet-to-optical spectral characteristics of extremely metal-poor and metal-free galaxies
• On the frequency, intensity and duration of starburst episodes triggered by galaxy interactions and mergers
• Dust extinction from Balmer decrements of star-forming galaxies at 0.75<z<1.5 with HST/WFC3 spectroscopy from the WISP survey
• The Cosmic BPT Diagram: Confronting Theory with Observations
• The impact of nebular emission on the ages of z~6 galaxies
• Unleashing Positive Feedback: Linking the Rates of Star Formation, Supermassive Black Hole Accretion and Outflows in Distant Galaxies
• The first Herschel view of the mass-SFR link in high-z galaxies
• A New Diagnostic of Active Galactic Nuclei: Revealing Highly-Absorbed Systems at Redshift>0.3
• Star formation at z=1.47 from HiZELS: An Hα+[OII] double-blind study
• AEGIS-X: The Chandra Deep Survey of the Extended Groth Strip
• Very Strong Emission-Line Galaxies in the WISP Survey and Implications for High-Redshift Galaxies
• Physical Properties of Emission-Line Galaxies at z ~ 2 from Near-Infrared Spectroscopy with Magellan FIRE
• On the oxygen and nitrogen chemical abundances and the evolution of the "green pea" galaxies
• A robust sample of galaxies at redshifts 6.0<z<8.7: stellar populations, star-formation rates and stellar masses
• Lyman-Alpha-Emitting Galaxies at z = 2.1 in ECDF-S: Building Blocks of Typical Present-day Galaxies?
• A fundamental relation between the metallicity, gas content, and stellar mass of local galaxies
• The Subaru/XMM-Newton Deep Survey (SXDS): III. X-Ray Data
• Dwarf Galaxy Starburst Statistics in the Local Volume
• Stellar Populations of Lyman Alpha Emitters at z~6-7: Constraints on the Escape Fraction of Ionizing Photons from Galaxy Building Blocks
• z~4 Halpha Emitters in GOODS : Tracing the Dominant Mode for Growth of Galaxies
• Ultra-faint Ultraviolet Galaxies at z~2 Behind the Lensing Cluster Abell 1689: the Luminosity Function, Dust Extinction and Star Formation Rate Density
• The WFC3 Infrared Spectroscopic Parallel (WISP) Survey
• Relative merits of different types of rest-frame optical observations to constrain galaxy physical parameters
• Low Masses and High Redshifts: The Evolution of the Mass-Metallicity Relation
• Halpha Equivalent Widths from the 3D-HST survey: evolution with redshift and dependence on stellar mass
• The HETDEX Pilot Survey III: The Low Metallicities of High-Redshift Lyman Alpha Galaxies
• Dissecting the stellar mass-SFR correlation in z=1 star-forming disk galaxies
• The Star Formation Demographics of Galaxies in the Local Volume
• The diminishing importance of major galaxy mergers at higher redshifts
• The rise and fall of the star formation histories of blue galaxies at redshifts 0.2<z<1.4
• Predicting Future Space Near-IR Grism Surveys using the WFC3 Infrared Spectroscopic Parallels Survey
• Biases and Uncertainties in Physical Parameter Estimates of Lyman Break Galaxies from Broad-band Photometry
• Contamination of Broad-Band Photometry by Nebular Emission in High Redshift Galaxies: Investigations with Keck's MOSFIRE Near-Infrared Spectrograph
• Nebular Attenuation in Hα-selected Star-forming Galaxies at z=0.8 from the NewHα Survey
• Star Formation in a Stellar Mass Selected Sample of Galaxies to z=3 from the GOODS NICMOS Survey (GNS)
• The role of galaxy interaction in the SFR-M relation: characterizing morphological properties of Herschel-selected galaxies at 0.2<z<1.5
• Galaxy And Mass Assembly (GAMA): The connection between metals, specific-SFR, and HI gas in galaxies: the Z-SSFR relation
• On Lya emission in z~3-6 UV-selected galaxies
• Stellar Populations of Lyman Break Galaxies at z=1-3 in the HST/WFC3 Early Release Science Observations
• A nearby GRB host prototype for z~7 Lyman-break galaxies: Spitzer-IRS and X-shooter spectroscopy of the host galaxy of GRB031203
• HST/WFC3 Near-Infrared spectroscopy of quenched galaxies at z~1.5 from the WISP Survey: Stellar population properties
• Low-Metallicity Star Formation in High-Redshift Galaxies at z~8

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• [OIII] emission line as a tracer of star-forming galaxies at high redshifts: Comparison between H$\alpha$ and [OIII] emitters at $z$=2.23 in HiZELS
• Lyman-Break Galaxies at $z\sim 3$ in the Subaru Deep Field: Luminosity Function, Clustering and [OIII] Emission
• Stellar populations and star formation histories of the most extreme [OIII] emitters at $z=1.3-3.7$
• New insights on the nebular emission, ionizing radiation and low metallicity of Green Peas from advanced modelling
• Lyman Continuum Emission Escaping from Luminous Green Pea Galaxies at z=0.5
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• Recent stellar mass assembly of low-mass star-forming galaxies at redshifts 0.3 < z < 0.9
• Cosmic reflections I: the structural diversity of simulated and observed low-mass galaxy analogues
• Taking a Break at Cosmic Noon: Continuum-selected Low-mass Galaxies Require Long Burst Cycles
• Default Parallels: The Science Potential Of JWST Parallel Observations During TSO Primary Observations
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• A MUSE view of the multiple interacting system HCG 31
• The Evolution of the Luminosity Function for Luminous Compact Blue Galaxies to z=1
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• J-PAS: First Identification, Physical Properties and Ionization Efficiency of Extreme Emission Line Galaxies
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