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LoVoCCS. III. Third Generation Pipeline & The Hercules Supercluster
Anthony M. Englert, Shenming Fu, Ian Dell'Antonio +29
The Local Volume Complete Cluster Survey (LoVoCCS) is a volume-complete survey of over one-hundred nearby (), X-ray luminous ($L_{500} > 10^{44} \text{ erg s}^{-1}…
Little red dot variability over a century reveals black hole envelope via a giant Einstein cross
Zijian Zhang, Mingyu Li, Masamune Oguri +79
"Little red dots" (LRDs) represent a new population of astronomical objects uncovered by JWST whose nature remains debated. Although many LRDs are suspected as active galactic nucl…
The Lyman alpha Sky as Observed by New Horizons
G. R. Gladstone, J. M. Shull, W. R. Pryor +22
During September 2023 the Alice ultraviolet spectrograph on the New Horizons (NH) spacecraft was used to map diffuse Lyman alpha (Lya) emission over most of the sky, at a range of…
Excess Ultraviolet Emission at High Galactic Latitudes: A New Horizons View
Jayant Murthy, J. Michael Shull, Marc Postman +11
We present new observations of the cosmic ultraviolet background (CUVB) at high Galactic latitudes (), made using the Alice UV spectrograph on board the New Horiz…
New Synoptic Observations of the Cosmic Optical Background with New Horizons
Marc Postman, Tod R. Lauer, Joel W. Parker +11
We obtained New Horizons LORRI images to measure the cosmic optical background (COB) intensity integrated over The survey comprises 16 high Galac…
Reaching for the stars -- JWST/NIRSpec spectroscopy of a lensed star candidate at
Lukas J. Furtak, Ashish K. Meena, Erik Zackrisson +31
We present JWST/NIRSpec observations of a highly magnified star candidate at a photometric redshift of , previously detected in JWST/NIRCam imaging of t…
Unbiased surveys of dust-enshrouded galaxies using ALMA
K. Kohno, S. Fujimoto, A. Tsujita +43
The ALMA lensing cluster survey (ALCS) is a 96-hr large program dedicated to uncovering and characterizing intrinsically faint continuum sources and line emitters with the assistan…
JWST NIRSpec spectroscopy of the triply-lensed galaxy MACS0647JD
Tiger Yu-Yang Hsiao, Abdurro'uf, Dan Coe +38
We present JWST/NIRSpec prism spectroscopy of MACS0647-JD, the triply-lensed candidate discovered in HST imaging and spatially resolved by JWST imaging into two compone…
ALMA Lensing Cluster Survey: Deep 1.2 mm Number Counts and Infrared Luminosity Functions at
Seiji Fujimoto, Kotaro Kohno, Masami Ouchi +40
We present a statistical study of 180 dust continuum sources identified in 33 massive cluster fields by the ALMA Lensing Cluster Survey (ALCS) over a total of 133 arcmin area…
JWST reveals a possible galaxy merger in triply-lensed MACS0647JD
Tiger Yu-Yang Hsiao, Dan Coe, Abdurro'uf +63
MACS0647JD is a triply-lensed galaxy originally discovered with the Hubble Space Telescope. Here we report new JWST imaging, which clearly resolves MACS0647JD as ha…
High-Redshift Galaxy Candidates at as Revealed by JWST Observations of WHL0137-08
Larry D. Bradley, Dan Coe, Gabriel Brammer +25
We report the discovery of four galaxy candidates observed 450 - 600 Myr after the Big Bang with photometric redshifts between z ~ 8.3 - 10.2 measured using the JWST NIRCam imaging…
JWST Imaging of Earendel, the Extremely Magnified Star at Redshift
Brian Welch, Dan Coe, Erik Zackrisson +60
The gravitationally lensed star WHL0137-LS, nicknamed Earendel, was identified with a photometric redshift based on images taken with the Hubble Space Tele…
ALMA Lensing Cluster Survey: and Photometry of 33 Lensed Fields Built with CHArGE
Vasily Kokorev, Gabriel Brammer, Seiji Fujimoto +30
We present a set of multi-wavelength mosaics and photometric catalogs in the ALMA lensing cluster survey (ALCS) fields. The catalogs were built by reprocessing of archival data fro…
Anomalous Flux in the Cosmic Optical Background Detected With New Horizons Observations
Tod R. Lauer, Marc Postman, John R. Spencer +27
We used New Horizons LORRI images to measure the optical-band () sky brightness within a high galactic-latitude field selected to have reduced diffu…
CLASH-VLT: Abell~S1063. Cluster assembly history and spectroscopic catalogue
A. Mercurio, P. Rosati, A. Biviano +31
Using the CLASH-VLT survey, we assembled an unprecedented sample of 1234 spectroscopically confirmed members in Abell~S1063, finding a dynamically complex structure at z_cl=0.3457…
The VLT-MUSE and ALMA view of the MACS 1931.8-2635 brightest cluster galaxy
B. I. Ciocan, B. L. Ziegler, M. Verdugo +4
We reveal the importance of ongoing in-situ star formation in the Brightest Cluster Galaxy in the massive cool-core CLASH cluster MACS 1931.8-2635 at z=0.35. Using a multi-waveleng…
New Horizons Observations of the Cosmic Optical Background
Tod R. Lauer, Marc Postman, Harold A. Weaver +26
We used existing data from the New Horizons LORRI camera to measure the optical-band () sky brightness within seven high galactic latitude fields. T…
Lyman continuum observations across cosmic time: recent developments, future requirements
Stephan R. McCandliss, Daniela Calzetti, Henry C. Ferguson +19
Quantifying the physical conditions that allow radiation emitted shortward of the hydrogen ionization edge at 911.7 Å to escape the first collapsed objects and ultimately reionize…
The Dust and Molecular Gas in the Brightest Cluster Galaxy in MACS 1931.8-2635
Kevin Fogarty, Marc Postman, Yuan Li +6
We present new ALMA observations of the molecular gas and far-infrared continuum around the brightest cluster galaxy (BCG) in the cool-core cluster MACS 1931.8-2635. Our observatio…
Ultraviolet Perspectives on Diffuse Gas in the Largest Cosmic Structures
Joseph N. Burchett, Daisuke Nagai, Iryna Butsky +31
The past decade has seen an explosion of discoveries and new insights into the diffuse gas within galaxies, galaxy clusters, and the filaments composing the Cosmic Web. A new decad…
Understanding the circumgalactic medium is critical for understanding galaxy evolution
Molly S. Peeples, Peter Behroozi, Rongmon Bordoloi +69
Galaxies evolve under the influence of gas flows between their interstellar medium and their surrounding gaseous halos known as the circumgalactic medium (CGM). The CGM is a major…
Astro2020 Science White Paper: Assembly of the Most Massive Clusters at Cosmic Noon
Jeyhan Kartaltepe, Caitlin Casey, Mark Dickinson +5
Galaxy evolution is driven by many complex interrelated processes as galaxies accrete gas, form new stars, grow their stellar masses and central black holes, and subsequently quenc…
Halo Concentrations and the Fundamental Plane of Galaxy Clusters
Yutaka Fujita, Megan Donahue, Stefano Ettori +6
According to the standard cold dark matter (CDM) cosmology, the structure of dark halos including those of galaxy clusters reflects their mass accretion history. Older clusters ten…
Stellar Mass and 3.4 m M/L Ratio Evolution of Brightest Cluster Galaxies in COSMOS since z ~ 1.0
Kevin C. Cooke, Kevin Fogarty, Jeyhan S. Kartaltepe +3
We investigate the evolution of star formation rates (SFRs), stellar masses, and M/L ratios of brightest cluster galaxies (BCGs) in the COSMOS survey since z ~ 1 to dete…