A5048115481- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Cosmology and Gravitation Theories
- Adaptive optics and wavefront sensing
- Stellar, planetary, and galactic studies
- CCD and CMOS Imaging Sensors
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Atomic and Molecular Physics
- Scientific Research and Discoveries
University of Massachusetts Amherst
2020-2024
Abstract We describe the survey design and science goals for One-hundred-deg 2 DECam Imaging in Narrowbands (ODIN), a NOIRLab using Dark Energy Camera (DECam) to obtain deep (AB ∼ 25.7) narrowband images over an unprecedented area of sky. The three custom-built filters, N 419, 501, 673, have central wavelengths 673 nm respective FWHM 7.5, 7.6, 10.0 nm, corresponding Ly α at z = 2.4, 3.1, 4.5 cosmic times 2.8, 2.1, 1.4 Gyr, respectively. When combined with even deeper, public broadband data...
Abstract To understand the formation and evolution of massive cosmic structures, studying them at high redshift, in epoch when they formed majority their mass, is essential. The One-hundred-deg 2 DECam Imaging Narrowbands (ODIN) survey undertaking widest-area narrowband program to date, use Ly α -emitting galaxies (LAEs) trace large-scale structure (LSS) Universe on scale 10–100 cMpc three epochs. In this work, we present results z = 3.1 based early ODIN data COSMOS field. We identify...
Massive galaxy clusters undergo strong evolution from z~1.6 to z~0.5, with overdense environments at high-z characterized by abundant dust-obscured star formation and stellar mass growth which rapidly give way widespread quenching. Data spanning the near- far-infrared (IR) spectrum can directly trace this transformation; however, such studies have largely been limited massive end of cluster populations. In work, we present ``total light" stacking techniques 3.4-500{\mu}m aimed revealing...
Abstract Combined observations from UV to IR wavelengths are necessary fully account for the star formation in galaxy clusters. Low-mass galaxies with <?CDATA ${\rm{log}}({M}_{\ast }/{M}_{\odot })\lt 10$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:mi mathvariant="normal">log</mml:mi> </mml:mrow> <mml:mo stretchy="false">(</mml:mo> <mml:msub> <mml:mi>M</mml:mi> <mml:mo>∗</mml:mo> </mml:msub> <mml:mo>/</mml:mo> <mml:mo>⊙</mml:mo>...
Abstract As the progenitors of present-day galaxy clusters, protoclusters are excellent laboratories to study evolution. Since existing observations limited detected constituent galaxies at UV and/or infrared wavelengths, details how typical grow in these young, pre-virialized structures remain uncertain. We measure total stellar mass and star formation within protoclusters, including contribution from faint undetected members by performing a stacking analysis 211 z = 2–4 selected as Planck...
To understand the formation and evolution of massive cosmic structures, studying them at high redshift, in epoch when they formed majority their mass is essential. The One-hundred-deg$^2$ DECam Imaging Narrowbands (ODIN) survey undertaking widest-area narrowband program to date, use Ly$\alpha$-emitting galaxies (LAEs) trace large-scale structure (LSS) Universe three epochs. In this work, we present results $z$ = 3.1 based on early ODIN data COSMOS field. We identify characterize...
We investigate the physical properties and redshift evolution of simulated galaxies residing in protoclusters at cosmic noon, to understand influence environment on galaxy formation. This work is build clear expectations for ongoing ODIN survey, devoted mapping large-scale structures z=2.4, 3.1, 4.5 using Ly$\alpha$-emitting (LAEs) as tracers. From IllustrisTNG simulations, we define subregions centered most massive clusters ranked by total stellar mass z=0 study within, including LAEs. To...
As the progenitors of present-day galaxy clusters, protoclusters are excellent laboratories to study evolution. Since existing observations limited detected constituent galaxies at UV and/or infrared wavelengths, details how typical grow in these young, pre-virialized structures remain uncertain. We measure total stellar mass and star formation within protoclusters, including contribution from faint undetected members by performing a stacking analysis 211 $z=2-4$ selected as Planck cold...
We describe the survey design and science goals for ODIN (One-hundred-deg^2 DECam Imaging in Narrowbands), a NOIRLab using Dark Energy Camera (DECam) to obtain deep (AB~25.7) narrow-band images over an unprecedented area of sky. The three custom-built filters, N419, N501, N673, have central wavelengths 419, 501, 673 nm respective full-widthat-half-maxima 7.2, 7.4, 9.8 nm, corresponding Lya at z=2.4, 3.1, 4.5 cosmic times 2.8, 2.1, 1.4 Gyr, respectively. When combined with even deeper, public...