Introducing the FLAMINGOS-2 Split-K Medium Band Filters: The Impact on Photometric Selection of High-z Galaxies in the FENIKS-pilot survey

Abstract

Deep near-infrared photometric surveys are efficient in identifying high-redshift galaxies, however they can be prone to systematic errors in photometric redshift. This is particularly salient when there is limited sampling of key spectral features of a galaxy's spectral energy distribution (SED), such as for quiescent galaxies where the expected age-sensitive Balmer/4000 A break enter the $K$-band at $z>4$. With single filter sampling of this spectral feature, degeneracies between SED models and redshift emerge. A potential solution to this comes from splitting the $K$-band into multiple filters. We use simulations to show an optimal solution is to add two medium-band filters, $K_{\mathrm{blue}}$ (${\lambda }_{\mathrm{cen}}$=2.06 $\mu$m, $\Delta \lambda$=0.25 $\mu$m) and $K_{\mathrm{red}}$ (${\lambda }_{\mathrm{cen}}$=2.31 $\mu$m, $\Delta \lambda$=0.27 $\mu$m), that are complementary to the existing $K_{\mathrm{s}}$ filter. We test the impact of the $K$-band filters with simulated catalogues comprised of galaxies with varying ages and signal-to-noise. The results suggest that the $K$-band filters do improve photometric redshift constraints on $z>4$ quiescent galaxies, increasing precision and reducing outliers by up to 90$\%$. We find that the impact from the $K$-band filters depends on the signal-to-noise, the redshift and the SED of the galaxy. The filters we designed were built and used to conduct a pilot of the FLAMINGOS-2 Extra-galactic Near-Infrared $K$-band Split (FENIKS) survey. While no new $z>4$ quiescent galaxies are identified in the limited area pilot, the $K_{\mathrm{blue}}$ and $K_{\mathrm{red}}$ filters indicate strong Balmer/4000 A breaks in existing candidates. Additionally we identify galaxies with strong nebular emission lines, for which the $K$-band filters increase photometric redshift precision and in some cases indicate extreme star-formation.

arXiv comment27 pages, 18 figures. Accepted for publication in the Astronomical Journal

References in corpus (54)

• Astropy: A Community Python Package for Astronomy
• Stellar population synthesis at the resolution of 2003
• Galactic Stellar and Substellar Initial Mass Function
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• On the variation of the Initial Mass Function
• Cosmic Star Formation History
• Stellar Masses and Star Formation Histories for 10^5 Galaxies from the Sloan Digital Sky Survey
• EAZY: A Fast, Public Photometric Redshift Code
• SparsePak: A Formatted Fiber Field Unit for The WIYN Telescope Bench Spectrograph. I. Design, Construction, and Calibration
• The COSMOS2015 Catalog: Exploring the 1<z<6 Universe with half a million galaxies
• An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2
• The Dust Opacity of Star-Forming Galaxies
• Inferring the star-formation histories of massive quiescent galaxies with BAGPIPES: Evidence for multiple quenching mechanisms
• The 3D-HST Survey: Hubble Space Telescope WFC3/G141 grism spectra, redshifts, and emission line measurements for $\sim 100,000$ galaxies
• 3D-HST: A wide-field grism spectroscopic survey with the Hubble Space Telescope
• Galaxy formation in the Planck Cosmology - I. Matching the observed evolution of star formation rates, colours and stellar masses
• The NEWFIRM Medium-band Survey: Photometric Catalogs, Redshifts and the Bimodal Color Distribution of Galaxies out to z~3
• A Public Ks-selected Catalog in the COSMOS/UltraVISTA Field: Photometry, Photometric Redshifts and Stellar Population Parameters
• The galaxy stellar mass function at 3.5<z<7.5 in the CANDELS/UDS, GOODS-South, and HUDF fields
• How to measure galaxy star-formation histories I: Parametric models
• A massive, quiescent galaxy at redshift of z=3.717
• 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
• Near infrared spectroscopy and star-formation histories of 3<z<4 quiescent galaxies
• A substantial population of massive quiescent galaxies at z~4 from ZFOURGE
• The Star Formation Main Sequence in the Hubble Space Telescope Frontier Fields
• Quiescent galaxies 1.5 billion years after the Big Bang and their progenitors
• Superdense massive galaxies in the Nearby Universe
• The Evolution of Galaxy Number Density at z < 8 and its Implications
• On the Dearth of Compact, Massive, Red Sequence Galaxies in the Local Universe
• Red & Dead CANDELS: massive passive galaxies at the dawn of the Universe
• The VANDELS ESO public spectroscopic survey
• The Most Massive Galaxies at 3.0<z<4.0 in the NEWFIRM Medium-Band Survey: Properties and Improved Constraints on the Stellar Mass Function
• Mergers, Starbursts, and Quenching in the Simba Simulation
• Exploring the z=3-4 massive galaxy population with ZFOURGE: the prevalence of dusty and quiescent galaxies
• Spitzer bright, UltraVISTA faint sources in COSMOS: the contribution to the overall population of massive galaxies at z=3-7
• The evolution of the equivalent width of the Ha emission line and specific star-formation rate in star-forming galaxies at 1<z<5
• An Extremely Massive Quiescent Galaxy at $z=3.493$: Evidence of Insufficiently Rapid Quenching Mechanisms in Theoretical Models
• The UVJ Selection of Quiescent and Star Forming Galaxies: Separating Early and Late-Type Galaxies and Isolating Edge-on Spirals
• The sizes of massive quiescent and star forming galaxies at z~4 with ZFOURGE and CANDELS
• The Evolution of the Fractions of Quiescent and Star-forming Galaxies as a Function of Stellar Mass Since z=3: Increasing Importance of Massive, Dusty Star-forming Galaxies in the Early Universe
• Chasing passive galaxies in the early Universe: a critical analysis in CANDELS GOODS-South
• Optically-faint massive Balmer Break Galaxies at z>3 in the CANDELS/GOODS fields
• Spectroscopic Confirmation of an Ultra Massive and Compact Galaxy at z=3.35: A Detailed Look at an Early Progenitor of Local Most Massive Ellipticals
• Discovery of Extreme [OIII]+H$\beta$ Emitting Galaxies Tracing an Overdensity at z~3.5 in CDF-South
• Stellar mass functions of galaxies at 4<z<7 from an IRAC-selected sample in COSMOS/UltraVISTA: limits on the abundance of very massive galaxies
• The emergence of passive galaxies in the early Universe
• A spectroscopic follow-up program of very massive galaxies at 3<z<4: confirmation of spectroscopic redshifts, and a high fraction of powerful AGN
• The ASTRODEEP-GS43 catalogue: new photometry and redshifts for the CANDELS GOODS-South field
• Passive galaxies in the early Universe: ALMA confirmation of z~3-5 candidates in the CANDELS GOODS-South field
• Selection of massive evolved galaxies at $3\le z\le 4.5$ in the CANDELS fields
• Reconstructing the observed ionizing photon production efficiency at z~2 using stellar population models
• MOSEL: Strong [OIII]5007 Å Emitting Galaxies at (3<z<4) from the ZFOURGE Survey
• Dark-ages Reionization and Galaxy Formation Simulation - XIII. AGN quenching of high-redshift star formation in ZF-COSMOS-20115
• Recently Quenched Galaxies at z = 0.2 - 4.8 in the COSMOS UltraVISTA Field

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