Search Results - "Conselice, Christopher J."
-
1
The Evolution of Galaxy Structure Over Cosmic Time
Published in Annual review of astronomy and astrophysics (01-01-2014)“…I present a comprehensive review of the evolution of galaxy structure in the Universe from the first galaxies currently observable at z ∼ 6 down to galaxies…”
Get full text
Journal Article -
2
UV Spectral Slopes at z = 6−9 in the Hubble Frontier Fields: Lack of Evidence for Unusual or Population III Stellar Populations
Published in The Astrophysical journal (01-03-2021)“…Abstract We present new measurements of the UV spectral slope β for galaxies at z = 6−9 in the Frontier Field cluster MACS J0416.1–2403 and its parallel field…”
Get full text
Journal Article -
3
Evolution of the galaxy stellar mass functions and UV luminosity functions at z = 6−9 in the Hubble Frontier Fields
Published in Monthly notices of the Royal Astronomical Society (01-07-2019)“…Abstract We present new measurements of the evolution of the galaxy stellar mass functions (GSMFs) and ultraviolet luminosity functions (UV LFs) for galaxies…”
Get full text
Journal Article -
4
Constraining astrophysical observables of galaxy and supermassive black hole binary mergers using pulsar timing arrays
Published in Monthly notices of the Royal Astronomical Society (01-09-2019)“…ABSTRACT We present an analytic model to describe the supermassive black hole binary (SMBHB) merger rate in the Universe with astrophysical observables: galaxy…”
Get full text
Journal Article -
5
THE EVOLUTION OF GALAXY NUMBER DENSITY AT z < 8 AND ITS IMPLICATIONS
Published in The Astrophysical journal (20-10-2016)“…ABSTRACT The evolution of the number density of galaxies in the universe, and thus also the total number of galaxies, is a fundamental question with…”
Get full text
Journal Article -
6
GW190521 from the Merger of Ultradwarf Galaxies
Published in Physical review letters (07-05-2021)“…We present an alternative formation scenario for the gravitational wave event GW190521 that can be explained as the merger of central black holes (BHs) from…”
Get full text
Journal Article -
7
The Astrobiological Copernican Weak and Strong Limits for Intelligent Life
Published in The Astrophysical journal (01-06-2020)“…We present a cosmic perspective on the search for life and examine the likely number of Communicating Extra-Terrestrial Intelligent (CETI) civilizations in our…”
Get full text
Journal Article -
8
Powering reionization: assessing the galaxy ionizing photon budget at z < 10
Published in Monthly notices of the Royal Astronomical Society (01-08-2015)“…We present a new analysis of the ionizing emissivity ( $\dot{N}_{\rm {ion}}$ , s−1 Mpc−3) for galaxies during the epoch of reionization and their potential for…”
Get full text
Journal Article -
9
Galaxy Merger Rates up to z ∼ 3 Using a Bayesian Deep Learning Model: A Major-merger Classifier Using IllustrisTNG Simulation Data
Published in The Astrophysical journal (01-06-2020)“…Merging is potentially the dominant process in galaxy formation, yet there is still debate about its history over cosmic time. To address this, we classify…”
Get full text
Journal Article -
10
The fundamental properties of galaxies and a new galaxy classification system
Published in Monthly notices of the Royal Astronomical Society (21-12-2006)“…We present in this paper a new three-dimensional galaxy classification system designed to account for the diversity of galaxy properties in the nearby…”
Get full text
Journal Article -
11
How do central and satellite galaxies quench? – Insights from spatially resolved spectroscopy in the MaNGA survey
Published in Monthly notices of the Royal Astronomical Society (01-11-2020)“…ABSTRACT We investigate how star formation quenching proceeds within central and satellite galaxies using spatially resolved spectroscopy from the SDSS-IV…”
Get full text
Journal Article -
12
Observational Constraints on the Merger History of Galaxies since z 6: Probabilistic Galaxy Pair Counts in the CANDELS Fields
Published in The Astrophysical journal (10-05-2019)“…Galaxy mergers are expected to have a significant role in the mass assembly of galaxies in the early universe, but there are very few observational constraints…”
Get full text
Journal Article -
13
Early-type galaxies have been the predominant morphological class for massive galaxies since only z ∼ 1
Published in Monthly notices of the Royal Astronomical Society (11-01-2013)“…Present-day massive galaxies are composed mostly of early-type objects. It is unknown whether this was also the case at higher redshifts. In a hierarchical…”
Get full text
Journal Article -
14
Clumpy Galaxies in CANDELS. II. Physical Properties of UV-bright Clumps at 0.5 ≤ z < 3
Published in The Astrophysical journal (01-02-2018)“…Studying giant star-forming clumps in distant galaxies is important to understand galaxy formation and evolution. At present, however, observers and theorists…”
Get full text
Journal Article -
15
The JWST Hubble Sequence: The Rest-frame Optical Evolution of Galaxy Structure at 1.5 < z < 6.5
Published in The Astrophysical journal (01-10-2023)“…Abstract We present results on the morphological and structural evolution of a total of 3956 galaxies observed with JWST at 1.5 < z < 6.5 in the JWST CEERS…”
Get full text
Journal Article -
16
A Large Population of Faint 8 < z < 16 Galaxies Found in the First JWST NIRCam Observations of the NGDEEP Survey
Published in Astrophysical journal. Letters (01-07-2023)“…Abstract We present an early analysis on the search for high-redshift galaxies using the deepest public JWST imaging to date, the NGDEEP field. These data…”
Get full text
Journal Article -
17
The structures of distant galaxies – I. Galaxy structures and the merger rate to z∼ 3 in the Hubble Ultra-Deep Field
Published in Monthly notices of the Royal Astronomical Society (01-05-2008)“…This paper begins a series in which we examine the structures of distant galaxies to directly determine the history of their formation modes. We start this…”
Get full text
Journal Article -
18
JWST/NIRCam Probes Young Star Clusters in the Reionization Era Sunrise Arc
Published in The Astrophysical journal (01-03-2023)“…Abstract Star cluster formation in the early universe and its contribution to reionization remains largely unconstrained to date. Here we present JWST/NIRCam…”
Get full text
Journal Article -
19
Unscrambling the Lensed Galaxies in JWST Images behind SMACS 0723
Published in Astrophysical journal. Letters (01-10-2022)“…Abstract The first deep field images from the James Webb Space Telescope (JWST) of the galaxy cluster SMACS J0723.3-7327 reveal a wealth of new lensed images…”
Get full text
Journal Article -
20
CLUMPY GALAXIES IN CANDELS. I. THE DEFINITION OF UV CLUMPS AND THE FRACTION OF CLUMPY GALAXIES AT 0.5 < z < 3
Published in The Astrophysical journal (10-02-2015)“…Although giant clumps of stars are thought to be crucial to galaxy formation and evolution, the most basic demographics of clumps are still uncertain, mainly…”
Get full text
Journal Article