Search Publications
DIAmante TESS AutoRegressive Planet Search (DTARPS). I. Analysis of 0.9 Million Light Curves
Feigelson, Eric D.; Montalto, Marco; Melton, Elizabeth J. +3 more
Nearly one million light curves from the TESS Year 1 southern hemisphere extracted from Full Field Images with the DIAmante pipeline are processed through the AutoRegressive Planet Search statistical procedure. ARIMA models remove lingering autocorrelated noise, the Transit Comb Filter identifies the strongest periodic signal in the light curve, a…
Effects of density and temperature variations on the metallicity of Mrk 71
Kreckel, Kathryn; Esteban, César; García-Rojas, Jorge +2 more
In a very recent work, [1] claim that the scenario of temperature inhomogeneities proposed by [2] ($t2$ > 0) is not able to explain the O$^{2+}$/H$^{+}$ abundance discrepancy observed between the calculations based on the optical [OIII] collisional excited lines (CELs) and the OII recombination lines (RLs) in the star forming galaxy Mrk71. In t…
First study of the supernova remnant population in the Large Magellanic Cloud with eROSITA
Maitra, Chandreyee; Koribalski, Bärbel S.; Sasaki, Manami +11 more
Aims. The all-sky survey carried out by the extended Roentgen Survey with an Imaging Telescope Array (eROSITA) on board Spektrum-Roentgen-Gamma (Spektr-RG, SRG) has provided spatially and spectrally resolved X-ray data of the entire Large Magellanic Cloud (LMC) and its immediate surroundings in the soft X-ray band down to 0.2 keV, with an average …
Host-star Properties of Hot, Warm, and Cold Jupiters in the Solar Neighborhood from Gaia Data Release 3: Clues to Formation Pathways
Henning, Thomas; Manoj, P.; Narang, Mayank +5 more
Giant planets exhibit diverse orbital properties, hinting at their distinct formation and dynamic histories. In this paper, using Gaia Data Release 3 (DR3), we investigate if and how the orbital properties of Jupiters are linked to their host star properties, particularly their metallicity and age. We obtain metallicities for main-sequence stars o…
NOEMA reveals the true nature of luminous red JWST z > 10 galaxy candidates
Walter, F.; Oesch, P. A.; Barrufet, L. +3 more
The first year of JWST has revealed a surprisingly large number of luminous galaxy candidates beyond z > 10. While some galaxies have already been spectroscopically confirmed, there is mounting evidence that a subsample of the candidates with particularly red inferred UV colours are, in fact, lower redshift contaminants. These interlopers are o…
Not-so-fast Kepler-1513: a perturbing planetary interloper in the exomoon corridor
Dalba, Paul A.; McLeod, Kim K.; Nesvorný, David +9 more
Transit timing variations (TTVs) can be induced by a range of physical phenomena, including planet-planet interactions, planet-moon interactions, and stellar activity. Recent work has shown that roughly half of moons would induce fast TTVs with a short period in the range of 2-4 orbits of its host planet around the star. An investigation of the Ke…
Characterizing the Rapid Hydrogen Disappearance in SN 2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties
Van Dyk, Schuyler D.; Filippenko, Alexei V.; Modjaz, Maryam +52 more
We present optical and near-infrared (NIR) observations of SN 2022crv, a stripped-envelope supernova in NGC 3054, discovered within 12 hr of explosion by the Distance Less Than 40 Mpc Survey. We suggest that SN 2022crv is a transitional object on the continuum between Type Ib supernovae (SNe Ib) and Type IIb supernovae (SNe IIb). A high-velocity h…
Extended Lyman-α emission towards the SPT2349-56 protocluster at z = 4.3
Anguita, Timo; Spilker, Justin; Aravena, Manuel +20 more
Context. Deep spectroscopic surveys with the Atacama Large Millimeter/submillimeter Array (ALMA) have revealed that some of the brightest infrared sources in the sky correspond to concentrations of submillimeter galaxies (SMGs) at high redshift. Among these, the SPT2349-56 protocluster system is amongst the most extreme examples given its high sou…
The GALAH survey: tracing the Milky Way's formation and evolution through RR Lyrae stars
Lewis, Geraint F.; Casey, Andrew R.; Matsunaga, Noriyuki +39 more
Stellar mergers and accretion events have been crucial in shaping the evolution of the Milky Way (MW). These events have been dynamically identified and chemically characterized using red giants and main-sequence stars. RR Lyrae (RRL) variables can play a crucial role in tracing the early formation of the MW since they are ubiquitous, old (t ≥ 10 …
ALMA Lensing Cluster Survey: Full Spectral Energy Distribution Analysis of z ∼ 0.5–6 Lensed Galaxies Detected with millimeter Observations
Koekemoer, Anton M.; Smail, Ian; Fujimoto, Seiji +17 more
Sub/millimeter galaxies are a key population for the study of galaxy evolution because the majority of star formation at high redshifts occurred in galaxies deeply embedded in dust. To search for this population, we have performed an extensive survey with Atacama Large Millimeter/submillimeter Array (ALMA), called the ALMA Lensing Cluster Survey (…