Search Publications
ALMA Lensing Cluster Survey: ALMA-Herschel Joint Study of Lensed Dusty Star-forming Galaxies across z ≃ 0.5 - 6
Pérez-González, Pablo G.; Koekemoer, Anton M.; Smail, Ian +25 more
We present an ALMA-Herschel joint analysis of sources detected by the ALMA Lensing Cluster Survey (ALCS) at 1.15 mm. Herschel/PACS and SPIRE data at 100-500 µm are deblended for 180 ALMA sources in 33 lensing cluster fields that are detected either securely (141 sources; in our main sample) or tentatively at S/N ≥ 4 with cross-matched HST/Sp…
SN 2018bsz: A Type I superluminous supernova with aspherical circumstellar material
Spyromilio, J.; Gromadzki, M.; Galbany, L. +26 more
We present a spectroscopic analysis of the most nearby Type I superluminous supernova (SLSN-I), SN 2018bsz. The photometric evolution of SN 2018bsz has several surprising features, including an unusual pre-peak plateau and evidence for rapid formation of dust ≳200 d post-peak. We show here that the spectroscopic and polarimetric properties of SN 2…
How much hydrogen is in Type Ib and IIb supernova progenitors?
Arcavi, Iair; Gilkis, Avishai
Core-collapse supernovae showing little or no hydrogen (denoted by Type IIb and Ib, respectively) are the explosions of massive stars that have lost some or most of their outer envelopes. How they lose their mass is unclear, but it likely involves binary interaction. So far, seven progenitors of such supernovae have been identified in pre-explosio…
NuSTAR Observations of 52 Compton-thick Active Galactic Nuclei Selected by the Swift/Burst Alert Telescope All-sky Hard X-Ray Survey
Tanimoto, Atsushi; Ueda, Yoshihiro; Ricci, Claudio +2 more
We present systematic broadband X-ray spectral analysis of 52 Compton-thick ( $24\leqslant \mathrm{log}{N}_{{\rm{H}}}^{\mathrm{LOS}}/{\mathrm{cm}}^{-2}$ ) active galactic nucleus (CTAGN) candidates selected by the Swift/Burst Alert Telescope all-sky hard X-ray survey observed with Chandra, X-ray Multi-Mirror Mission-Newton (XMM-Newton), Swift/X-Ra…
An early transition to magnetic supercriticality in star formation
Li, D.; Heiles, C.; Qian, L. +5 more
Magnetic fields have an important role in the evolution of interstellar medium and star formation1,2. As the only direct probe of interstellar field strength, credible Zeeman measurements remain sparse owing to the lack of suitable Zeeman probes, particularly for cold, molecular gas3. Here we report the detection of a magneti…
Exploring the dependence of hot Jupiter occurrence rates on stellar mass with TESS
Kunimoto, M.; Beleznay, Maya
We present estimates for the occurrence rates of hot Jupiters around dwarf stars based on data from the Transiting Exoplanet Survey Satellite (TESS) Prime Mission. We take 97 hot Jupiters orbiting 198 721 AFG dwarf stars (ranging in mass from 0.8 to $2.3\, {\rm M}_{\odot }$) from an independent search for hot Jupiters using TESS Prime Mission data…
Surface Brightness Profile of Lyman-α Halos out to 320 kpc in HETDEX
Ouchi, Masami; Finkelstein, Steven L.; Schneider, Donald P. +18 more
We present the median-stacked Lyman-α (Lyα) surface brightness profiles of 968 spectroscopically selected Lyα emitting galaxies (LAEs) at redshifts 1.9 < z < 3.5 in the early data of the Hobby-Eberly Telescope Dark Energy Experiment. The selected LAEs are high-confidence Lyα detections with high signal-to-noise ratios observed with good seei…
Exoplanet X-ray irradiation and evaporation rates with eROSITA
Schwope, A.; Poppenhaeger, K.; Ilic, N. +1 more
High-energy irradiation is a driver for atmospheric evaporation and mass loss in exoplanets. This work is based on data from eROSITA, the soft X-ray instrument on board the Spectrum Roentgen Gamma mission, as well as on archival data from other missions. We aim to characterise the high-energy environment of known exoplanets and estimate their mass…
The relativistic solar particle event on 28 October 2021: Evidence of particle acceleration within and escape from the solar corona
Krucker, Säm; Dresing, Nina; Klein, Karl-Ludwig +6 more
Aims: We analyse particle, radio, and X-ray observations during the first relativistic proton event of solar cycle 25 detected on Earth. The aim is to gain insight into the relationship between relativistic solar particles detected in space and the processes of acceleration and propagation in solar eruptive events.
Methods: To this end, …
A New Era of Intracluster Light Studies with JWST
Trujillo, Ignacio; Montes, Mireia
Still largely unexplored, the diffuse light in clusters of galaxies traces the past and ongoing buildup of these massive structures. Here we present the first comprehensive study of the intracluster light (ICL) of the cluster SMACS J0723.3-7327 (z = 0.39) using the JWST Early Release Observations. These deep and high spatial resolution images allo…