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Galaxies decomposition with spiral arms - II. A multiwavelength case study of M 51
Gontcharov, George A.; Mosenkov, Aleksandr V.; Savchenko, Sergey S. +7 more
Spiral structure can contribute significantly to a galaxy's luminosity. However, only rarely are proper photometric models of spiral arms used in decompositions. As we show in the previous work, including the spirals as a separate component in a photometric model of a galaxy would both allow to obtain their structural parameters, and reduce the sy…
A catalogue of Galactic GEMS: Globular cluster Extra-tidal Mock Stars
Speagle, Joshua S.; Lane, James M. M.; Webb, Jeremy J. +2 more
This work presents the Globular cluster Extra-tidal Mock Star (GEMS) catalogue of extra-tidal stars and binaries created via three-body dynamical encounters in globular cluster cores. Using the particle-spray code Corespray, we sample $N=50\, 000$ extra-tidal stars and escaped recoil binaries for 159 Galactic globular clusters. Sky positions, kine…
Discovery and follow-up of ASASSN-23bd (AT 2023clx): the lowest redshift and luminosity optically selected tidal disruption event
Kochanek, C. S.; Galbany, L.; Brown, P. J. +23 more
We report the All-Sky Automated Survey for SuperNovae discovery of the tidal disruption event (TDE) ASASSN-23bd (AT 2023clx) in NGC 3799, a LINER galaxy with no evidence of strong active galactic nucleus (AGN) activity over the past decade. With a redshift of z = 0.01107 and a peak ultraviolet (UV)/optical luminosity of (5.4 ± 0.4) × 1042
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…