Search Publications
The physical properties of local (U)LIRGs: A comparison with nearby early- and late-type galaxies
Bianchi, S.; Georgantopoulos, I.; Masoura, V. A. +6 more
Aims: In order to pinpoint the place of the (ultra-) luminous infrared galaxies ((U)LIRGs) in the local Universe, we examine the properties of a sample of 67 such nearby systems and compare them with those of 268 early- and 542 late-type, well studied, galaxies from the DustPedia database.
Methods: We made use of multi-wavelength photome…
Core Mass Function of a Single Giant Molecular Cloud Complex with 10,000 Cores
Qiu, Keping; Cao, Yue; Zhang, Qizhou +2 more
Similarity in shape between the initial mass function (IMF) and the core mass functions (CMFs) in star-forming regions prompts the idea that the IMF originates from the CMF through a self-similar core-to-star mass mapping process. To accurately determine the shape of the CMF, we create a sample of 8431 cores with the dust continuum maps of the Cyg…
Characteristics of the open star cluster Kronberger 60 using Gaia DR2
Tadross, A. L.; Hendy, Y. H.
The estimation of the main parameters of star clusters is a very important target in astrophysical studies. Many of the open clusters listed in known catalogs have insufficient astrometric parameters. Improving the observations and analysis methods proved that some of them are asterisms and not true clusters. The most important aspect of using the…
The GAPS Programme at TNG. XXIX. No detection of reflected light from 51 Peg b using optical high-resolution spectroscopy
Scandariato, G.; Pagano, I.; Poretti, E. +44 more
Context. The analysis of exoplanetary atmospheres by means of high-resolution spectroscopy is an expanding research field which provides information on the chemical composition, thermal structure, atmospheric dynamics, and orbital velocity of exoplanets.
Aims: In this work, we aim to detect the light reflected by the exoplanet 51 Peg b by emp…
Bursts before Burst: A Comparative Study on FRB 200428-associated and FRB-absent X-Ray Bursts from SGR J1935+2154
Lin, Lin; Zhang, Bing; Dai, Zi-Gao +8 more
Accompanied by an X-ray burst, the fast radio burst (FRB) FRB 200428 was recently confirmed as originating from the Galactic magnetar soft gamma repeater (SGR) SGR J1935+2154. Just before and after FRB 200428 was detected, the Five-hundred-meter Aperture Spherical radio Telescope (FAST) had been monitoring SGR J1935+2154 for eight hours. From UTC …
The Masses of Supernova Remnant Progenitors in NGC 6946
Williams, Benjamin F.; Blair, William P.; Dolphin, Andrew +5 more
We constrained the progenitor masses for 169 supernova remnants (SNRs), eight historically observed supernovae (SNe), and the black hole formation candidate in NGC 6946, finding that they are consistent with originating from a standard initial mass function. Additionally, there were 16 remnants that showed no sign of nearby star formation consiste…
Absolute parameters of young stars: V puppis
Blackford, M. G.; Budding, E.; Banks, T. +2 more
New spectrometric data on V Pup are combined with satellite photometry [HIPPARCOS and recent Transiting Exoplanet Survey Satellite (TESS)] to allow a revision of the absolute parameters with increased precision. We find: M1 = 14.0 ± 0.5, M2 = 7.3 ± 0.3 (M⊙); R1 = 5.48 ± 0.18, R2 = 4.59 ± 0.15 …
The diffuse interstellar band around 8620 Å. II. Kinematics and distance of the DIB carrier
Schultheis, M.; Recio-Blanco, A.; de Laverny, P. +4 more
Context. Diffuse interstellar bands (DIBs) are important interstellar absorption features of which the origin is still debated. With the large data sets from modern spectroscopic surveys, background stars are widely used to show how the integrated columns of DIB carriers accumulate from the Sun to great distances. To date, studies on the kinematic…
Probing the Hot Circumgalactic Medium with Broad O VI and X-Rays
Nicastro, Fabrizio; Mathur, Smita; Gupta, Anjali +2 more
Most of the baryonic mass in the circumgalactic medium (CGM) of a spiral galaxy is believed to be warm-hot, with temperature around 106 K. The narrow O VI absorption lines probe a somewhat cooler component at $\mathrm{log}\,T({\rm{K}})=5.5$ , but broad O VI absorbers have the potential to probe the hotter CGM. Here we present 376 ks Cha…
Morphometry as a probe of the evolution of jellyfish galaxies: evidence of broadening in the surface brightness profiles of ram-pressure stripping candidates in the multicluster system A901/A902
Rodríguez Del Pino, Bruno; Chies-Santos, Ana L.; Ferrari, Fabricio +2 more
We explore the morphometric properties of a group of 73 ram-pressure stripping candidates in the A901/A902 multicluster system, at z~ 0.165, to characterize the morphologies and structural evolution of jellyfish galaxies. By employing a quantitative measurement of morphometric indicators with the algorithm MORFOMETRYKA on Hubble Space Telescope (F…