Search Publications
Missions
Journals
Publication Years
Statistics of Galactic-scale Quasar Pairs at Cosmic Noon
Shen, Yue; Oguri, Masamune; Kratter, Kaitlin M. +8 more
The statistics of galactic-scale quasar pairs can elucidate our understanding of the dynamical evolution of supermassive black hole (SMBH) pairs, the duty cycles of quasar activity in mergers, or even the nature of dark matter, but they have been challenging to measure at cosmic noon, the prime epoch of massive galaxy and SMBH formation. Here we m…
Revisiting the mass of open clusters with Gaia data
Monteiro, Hektor; Dias, Wilton S.; Almeida, Anderson
The publication of the Gaia catalogue and improvements in methods to determine memberships and fundamental parameters of open clusters has led to major advances in recent years. However, important parameters such as the masses of these objects, although being studied mostly in some isolated cases, have not been addressed in large homogeneous sampl…
Hard X-Ray to Radio Multiwavelength SED Analysis of Local U/LIRGs in the GOALS Sample with a Self-consistent AGN Model including a Polar-dust Component
Imanishi, Masatoshi; Tanimoto, Atsushi; Ueda, Yoshihiro +7 more
We conduct hard X-ray to radio multiwavelength spectral energy distribution (SED) decomposition for 57 local luminous and ultraluminous infrared galaxies observed with the Nuclear Spectroscopic Telescope Array and/or Swift/Burst Alert Telescope in the GOALS sample. We modify the latest SED-fitting code X-CIGALE by implementing the infrared (IR) CL…
Measuring the giant radio galaxy length distribution with the LoTSS
van Weeren, Reinout J.; Hardcastle, Martin J.; Dabhade, Pratik +6 more
Context. Many massive galaxies launch jets from the accretion disk of their central black hole, but only ∼103 instances are known in which the associated outflows form giant radio galaxies (GRGs, or giants): luminous structures of megaparsec extent that consist of atomic nuclei, relativistic electrons, and magnetic fields. Large samples…
A deep-learning search for technosignatures from 820 nearby stars
de Pater, Imke; Gajjar, Vishal; Siemion, Andrew P. V. +14 more
The goal of the search for extraterrestrial intelligence (SETI) is to quantify the prevalence of technological life beyond Earth via their `technosignatures'. One theorized technosignature is narrowband Doppler drifting radio signals. The principal challenge in conducting SETI in the radio domain is developing a generalized technique to reject hum…
TDCOSMO. XIII. Cosmological distance measurements in light of the mass-sheet degeneracy: Forecasts from strong lensing and integral field unit stellar kinematics
Suyu, S. H.; Yıldırım, A.; Chen, G. C. -F. +1 more
Time-delay distance measurements of strongly lensed quasars have provided a powerful and independent probe of the current expansion rate of the Universe (H0). However, in light of the discrepancies between early- and late-time cosmological studies, current efforts revolve around the characterisation of systematic uncertainties in the me…
RELICS: Small-scale Star Formation in Lensed Galaxies at z = 6-10
Ravindranath, Swara; Windhorst, Rogier; Bradač, Maruša +13 more
Detailed observations of star-forming galaxies at high redshift are critical to understanding the formation and evolution of the earliest galaxies. Gravitational lensing provides an important boost, allowing observations at physical scales unreachable in unlensed galaxies. We present three lensed galaxies from the RELICS survey at z phot
Dust attenuation law in JWST galaxies at z ∼ 7-8
Ferrara, A.; Pallottini, A.; Sommovigo, L. +5 more
Context. Understanding the wavelength dependence of dust attenuation is vital for inferring the properties of galaxies from their spectral energy distribution (SED) fitting. The dust attenuation curves in star-forming galaxies depend on the complex interplay between the intrinsic physical dust properties and dust-to-star geometry. Due to the lack …
TESS Hunt for Young and Maturing Exoplanets (THYME). IX. A 27 Myr Extended Population of Lower Centaurus Crux with a Transiting Two-planet System
Vanderburg, Andrew; Latham, David W.; Quinn, Samuel N. +35 more
We report the discovery and characterization of a nearby (~85 pc), older (27 ± 3 Myr), distributed stellar population near Lower Centaurus Crux (LCC), initially identified by searching for stars comoving with a candidate transiting planet from TESS (HD 109833; TOI 1097). We determine the association membership using Gaia kinematics, color-magnitud…
Multi-messenger Model for the Prompt Emission from GRB 221009A
Bošnjak, Željka; Petropoulou, Maria; Rudolph, Annika +1 more
We present a multi-messenger model for the prompt emission from GRB 221009A within the internal shock scenario. We consider the time-dependent evolution of the outflow with its impact on the observed light curve from multiple collisions, as well as the self-consistent generation of the electromagnetic spectrum in synchrotron and inverse Compton-do…