Identification of galaxies that experienced a recent major drop of star formation

Abstract

[abridged] Building upon a previous study, we define a method to blindly identify galaxies that underwent, and may still be undergoing, a fast downfall of their star-formation activity, that is, a more than 80% drop in star-formation rate (SFR) occurring in less than 500 Myr. Modeling galaxies' SED with a delayed-$\tau$ star formation history (SFH), with and without allowing an instantaneous SFR drop within the last hundreds Myr, we isolate 102 candidates out of a subsample of 6,680 galaxies classified as star-forming from the UVJ criterion in the ZFOURGE catalogues. These galaxies are mostly located in the lower part of the SFR-M${}_{\ast }$ main sequence (MS) and extend up to a factor 100 below it. They also lie close to the limit between the passive and active regions on the UVJ diagram, indicating that they are in a transition phase. We show that the selected candidates have different physical properties compared to galaxies with similar UVJ colors, namely, lower star-formation rates and different stellar masses. The morphology of the candidates show no preference for a particular type. Among the 102 candidates, only 4 show signs of an AGN activity (from X-ray luminosity or UV-IR SED fitting decomposition). This low fraction of AGNs among the candidates implies that AGN activity may not be the main driver of the recent downfall, although timescale differences and duty cycle must be taken into account. We finally attempt to recover the past position of these galaxies on the SFR-M${}_{\ast }$ plane, before the downfall of their star-formation and show that some of them were in the starburst region before and are back on the MS. These candidates constitute a promising sample that need more investigation in order to understand the different mechanisms at the origin of the star formation decrease of the Universe since $z$$\sim$2.

arXiv commentAccepted for publication in A&A

References in corpus (78)

• Stellar population synthesis at the resolution of 2003
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• Energy input from quasars regulates the growth and activity of black holes and their host galaxies
• The Average Star Formation Histories of Galaxies in Dark Matter Halos from z=0-8
• CANDELS: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey
• Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era
• CANDELS: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey - The Hubble Space Telescope Observations, Imaging Data Products and Mosaics
• 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
• Evolutionary population synthesis: models, analysis of the ingredients and application to high-z galaxies
• A Unified, Merger-Driven Model for the Origin of Starbursts, Quasars, the Cosmic X-Ray Background, Supermassive Black Holes and Galaxy Spheroids
• The Great Observatories Origins Deep Survey: Initial Results From Optical and Near-Infrared Imaging
• 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
• Quantifying the bimodal color-magnitude distribution of galaxies
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• 3D-HST+CANDELS: The Evolution of the Galaxy Size-Mass Distribution since $z=3$
• GOODS-Herschel: an infrared main sequence for star-forming galaxies
• An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2
• Analysis of galaxy SEDs from far-UV to far-IR with CIGALE: Studying a SINGS test sample
• Constraining the Low-Mass Slope of the Star Formation Sequence at 0.5<z<2.5
• The lesser role of starbursts for star formation at z=2
• The Herschel view of the dominant mode of galaxy growth from z=4 to the present day
• The Herschel Multi-tiered Extragalactic Survey: HerMES
• 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 Stellar Populations and Evolution of Lyman Break Galaxies
• Revisiting the Infrared Spectra of Active Galactic Nuclei with a New Torus Emission Model
• The Evolving Interstellar Medium of Star Forming Galaxies Since z=2 as Probed by Their Infrared Spectral Energy Distributions
• PACS Evolutionary Probe (PEP) - A Herschel Key Program
• Wet Disc Contraction to Galactic Blue Nuggets and Quenching to Red Nuggets
• The NEWFIRM Medium-band Survey: Photometric Catalogs, Redshifts and the Bimodal Color Distribution of Galaxies out to z~3
• An ALMA survey of Sub-millimeter Galaxies in the Extended Chandra Deep Field South: Physical properties derived from ultraviolet-to-radio modelling
• How many cosmological parameters?
• Galaxy Stellar Mass Functions from ZFOURGE/CANDELS: An Excess of Low-Mass Galaxies Since z=2 and the Rapid Buildup of Quiescent Galaxies
• A Two-Parameter Model for the Infrared/Submillimeter/Radio Spectral Energy Distributions of Galaxies and AGN
• Far-infrared Spectral Energy Distribution Fitting for Galaxies Near and Far
• The Confinement of Star-Forming Galaxies into a Main Sequence through Episodes of Gas Compaction, Depletion, and Replenishment
• Star formation and dust obscuration at z~2: galaxies at the dawn of downsizing
• Regularity underlying complexity: a redshift-independent description of the continuous variation of galaxy-scale molecular gas properties in the mass-star formation rate plane
• Evolution of Interstellar Medium, Star Formation, and Accretion at High Redshift
• GaBoDS: The Garching-Bonn Deep Survey; IV. Methods for the Image reduction of multi-chip Cameras
• Star formation rates and masses of z ~ 2 galaxies from multicolour photometry
• The SFR-M* Relation and Empirical Star-Formation Histories from ZFOURGE at 0.5 < z < 4
• The Multiwavelength Survey by Yale-Chile (MUSYC): Deep Medium-Band optical imaging and high quality 32-band photometric redshifts in the ECDF-S
• Constraining the properties of AGN host galaxies with Spectral Energy Distribution modeling
• Recovering galaxy stellar population properties from broad-band spectral energy distribution fitting
• The FourStar Galaxy Evolution Survey (ZFOURGE): ultraviolet to far-infrared catalogs, medium-bandwidth photometric redshifts with improved accuracy, stellar masses, and confirmation of quiescent galaxies to z~3.5
• A substantial population of massive quiescent galaxies at z~4 from ZFOURGE
• Encoding the infrared excess (IRX) in the NUVrK color diagram for star-forming galaxies
• A remarkably flat relationship between the average star formation rate and AGN luminosity for distant X-ray AGN
• The evolution of star formation histories of quiescent galaxies
• Deep U band and R imaging of GOODS-South: Observations,data reduction and first results
• Starbursts in and out of the star-formation main sequence
• AGN-driven outflows without immediate quenching in simulations of high-redshift disk galaxies
• The IRX-beta relation on sub-galactic scales in star-forming galaxies of the Herschel Reference Survey
• The Great Observatories Origins Deep Survey - VLT/ISAAC Near-Infrared Imaging of the GOODS-South Field
• On the SFR-M${}_{\ast }$ main sequence archetypal star-formation history and analytical models
• Improving the Estimation of Star formation Rates and Stellar Population Ages of High-redshift Galaxies from Broadband Photometry
• HerMES: dust attenuation and star formation activity in UV-selected samples from z~4 to z~1.5
• The IMACS Cluster Building Survey: IV. The Log-normal Star Formation History of Galaxies
• The Taiwan ECDFS Near-Infrared Survey: Ultra-deep J and Ks Imaging in the Extended Chandra Deep Field-South
• The imprint of rapid star formation quenching on the spectral energy distributions of galaxies
• Exploring the z=3-4 massive galaxy population with ZFOURGE: the prevalence of dusty and quiescent galaxies
• Impact of star formation history on the measurement of star formation rates
• Mass assembly and morphological transformations since $z\sim 3$ from CANDELS
• Dissecting the stellar mass-SFR correlation in z=1 star-forming disk galaxies
• The quenching of the star formation activity in cluster galaxies
• GaBoDS: The Garching-Bonn Deep Survey V. Data release of the ESO Deep-Public-Survey
• The rise and fall of the star formation histories of blue galaxies at redshifts 0.2<z<1.4
• Ultraviolet to infrared emission of z>1 galaxies: Can we derive reliable star formation rates and stellar masses?
• The Intrinsic Scatter Along The Main Sequence of Star-Forming Galaxies at z ~ 0.7
• Return to [Log-]Normalcy: Rethinking Quenching, The Star Formation Main Sequence, and Perhaps Much More
• Population synthesis modelling of luminous infrared galaxies at intermediate redshift
• The ALMA Redshift 4 Survey (AR4S): I. The massive end of the z=4 main sequence of galaxies
• The Main Sequences of Starforming Galaxies and Active Galactic Nuclei at High Redshift
• Chandra counterparts of CANDELS GOODS-S sources
• Stellar masses and star formation rates of lensed dusty star-forming galaxies from the SPT survey

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