382 citations · 3.4k across the 65 of their papers we have counts for
53 papers · 1 filter
Learning to See Sharper: A Physics-Informed Artificial Intelligence Framework for Super-Resolving Galaxy Spectra
Aryana Haghjoo, Shoubaneh Hemmati, Bahram Mobasher +7
The information recoverable from galaxy spectra depends fundamentally on spectral resolution, yet assembling large samples at high resolution remains observationally expensive. We…
The Art of Measuring Physical Parameters in Galaxies: A Critical Assessment of Spectral Energy Distribution Fitting Techniques
Camilla Pacifici, Kartheik G. Iyer, Bahram Mobasher +52
The study of galaxy evolution hinges on our ability to interpret multi-wavelength galaxy observations in terms of their physical properties. To do this, we rely on spectral energy…
Gas Phase Metallicities of Local Ultra-Luminous Infrared Galaxies Follow Normal Star-Forming Galaxies
Nima Chartab, Asantha Cooray, Jingzhe Ma +9
Despite advances in observational data, theoretical models, and computational techniques to simulate key physical processes in the formation and evolution of galaxies, the stellar…
Massive molecular gas reservoir in a luminous sub-millimeter galaxy during cosmic noon
Bin Liu, N. Chartab, H. Nayyeri +11
We present multi-band observations of an extremely dusty star-forming lensed galaxy (HERS1) at . High-resolution maps of \textit{HST}/WFC3, SMA, and ALMA show a partial Ei…
Rise of the Titans: Gas Excitation and Feedback in a Binary Hyper-Luminous Dusty Starburst Galaxy at z~6
Dominik A. Riechers, Hooshang Nayyeri, Denis Burgarella +8
We report new observations toward the hyper-luminous dusty starbursting major merger ADFS-27 (z=5.655), using ATCA and ALMA. We detect CO 2-1, 8-7, 9-8, 10-9 and H2O(321-221) emiss…
Investigating the Effect of Galaxy Interactions on AGN Enhancement at
Ekta A. Shah, Jeyhan S. Kartaltepe, Christina T. Magagnoli +30
Galaxy interactions and mergers are thought to play an important role in the evolution of galaxies. Studies in the nearby universe show a higher AGN fraction in interacting and mer…
Selection of massive evolved galaxies at in the CANDELS fields
Abtin Shahidi, Bahram Mobasher, Hooshang Nayyeri +14
Using the CANDELS photometric catalogs for the HST/ACS and WFC3, we identified massive evolved galaxies at , employing three different selection methods. We find the c…
SCUBA-2 overdensities associated with candidate protoclusters selected from Planck data
T. Cheng, D. L. Clements, J. Greenslade +21
We measure the 850-m source densities of 46 candidate protoclusters selected from the Planck High-z catalogue (PHz) and the Planck Catalogue of Compact Sources (PCCS) that were…
Emergence of an Ultra-Red Ultra-Massive Galaxy Cluster Core at
Arianna S. Long, Asantha Cooray, Jingzhe Ma +6
Recent simulations and observations of massive galaxy cluster evolution predict that the majority of stellar mass build up happens within cluster members by , before cluster v…
Bridging between the integrated and resolved main sequence of star formation
Shoubaneh Hemmati, Bahram Mobasher, Hooshang Nayyeri +6
The position of galaxies on the stellar mass, star formation rate plane with respect to the star-forming main sequence at each redshift is a convenient way to infer where the galax…
Spectroscopic Confirmation of a Coma Cluster Progenitor at z ~ 2.2
Behnam Darvish, Nick Z. Scoville, Christopher Martin +17
We report the spectroscopic confirmation of a new protocluster in the COSMOS field at 2.2, COSMOS Cluster 2.2 (CC2.2), originally identified as an overdensity of narrowb…
Photometric Redshift Estimation with Galaxy Morphology using Self-Organizing Maps
Derek Wilson, Hooshang Nayyeri, Asantha Cooray +1
We use multi-band optical and near-infrared photometric observations of galaxies in the Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey (CANDELS) to predict photomet…
Evidence for Non-smooth Quenching in Massive Galaxies at
Timothy Carleton, Yicheng Guo, Hooshang Nayyeri +3
We investigate a large sample of massive galaxies at with combined broad-band and grism observations to constrain the star-formation histories of these systems as th…
The SFR-radius connection: data and implications for wind strength and halo concentration
Lin Lin, S. M. Faber, David C. Koo +26
This paper is one in a series that explores the importance of radius as a second parameter in galaxy evolution. The topic investigated here is the relationship between star formati…
SCUBA-2 observations of candidate starbursting protoclusters selected by Planck and Herschel-SPIRE
T. Cheng, D. L. Clements, J. Greenslade +21
We present SCUBA-2 850-m observations of 13 candidate starbursting protoclusters selected using Planck and Herschel data. The cumulative number counts of the 850-m sources in…
Spitzer catalog of Herschel-selected ultrared dusty, star-forming galaxies
Jingzhe Ma, Asantha Cooray, Hooshang Nayyeri +24
The largest Herschel extragalactic surveys, H-ATLAS and HerMES, have selected a sample of "ultrared" dusty, star-forming galaxies (DSFGs) with rising SPIRE flux densities ($S_{500}…
The CANDELS/SHARDS multi-wavelength catalog in GOODS-N: Photometry, Photometric Redshifts, Stellar Masses, Emission line fluxes and Star Formation Rates
Guillermo Barro, Pablo G. Perez-Gonzalez, Antonio Cava +52
We present a WFC3 F160W (-band) selected catalog in the CANDELS/GOODS-N field containing photometry from the ultraviolet (UV) to the far-infrared (IR), photometric redshifts and…
Discovery of a giant and luminous Lya+CIV+HeII nebula at z=3.326 with extreme emission line ratios
R. Marques-Chaves, I. Pérez-Fournon, M. Villar-Martín +17
We present the discovery of HLock01-LAB, a luminous and large Lya nebula at z=3.326. Medium-band imaging and long-slit spectroscopic observations with the Gran Telescopio Canarias…
Magnification, dust and time-delay constraints from the first resolved strongly lensed Type Ia supernova
S. Dhawan, J. Johansson, A. Goobar +14
We report lensing magnifications, extinction, and time-delay estimates for the first resolved, multiply-imaged Type Ia supernova iPTF16geu, at , using $Hubble\,Space\,Te…
Bringing manifold learning and dimensionality reduction to SED fitters
Shoubaneh Hemmati, Peter Capak, Milad Pourrahmani +8
We show unsupervised machine learning techniques are a valuable tool for both visualizing and computationally accelerating the estimation of galaxy physical properties from photome…
CDIM: Cosmic Dawn Intensity Mapper Final Report
Asantha Cooray, Tzu-Ching Chang, Stephen Unwin +23
The Cosmic Dawn Intensity Mapper (CDIM) will transform our understanding of the era of reionization when the Universe formed the first stars and galaxies, and UV photons ionized th…
CO, H2O, H2O+ line and dust emission in a z = 3.63 strongly lensed starburst merger at sub-kiloparsec scales
C. Yang, R. Gavazzi, A. Beelen +22
Using ALMA, we report high angular-resolution observations of the redshift z=3.63 galaxy, G09v1.97, one of the most luminous strongly lensed galaxies discovered by the H-ATLAS surv…
Cosmic Dawn and Reionization: Astrophysics in the Final Frontier
Asantha Cooray, James Aguirre, Yacine Ali-Haimoud +71
The cosmic dawn and epoch of reionization mark the time period in the universe when stars, galaxies, and blackhole seeds first formed and the intergalactic medium changed from neut…
Far-infrared And Nebular Star-formation Rates Of Dusty Star Forming Galaxies From Herschel And 3d-hst At Z~1
Farhanul Hasan, Hooshang Nayyeri, Asantha C. Cooray
We present results of a multi-band Spectral Energy Distribution (SED) and nebular emission line analysis of a sample of 1147 spectroscopically identified dusty star-forming galaxie…