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Astroinformatics: The Importance of Mining Astronomical Data in Binary Stars Catalogues
Abushattal, A. A.; Alrawashdeh, A. A.; Kraishan, A. F.
The field of Astroinformatics offers exciting new perspectives on astronomical discovery through the implementation of advanced data mining procedures. Data deluges transform research practices and methodologies across various scientific disciplines, including day-to-day astronomical research. It is essential to use innovative algorithms and metho…
Characterisation of surface topography and mineralogy of Cardanus and Krafft craters in the western Procellarum region of Moon
Singh, Deepali; Singh, Priyadarshini; Roy, Nidhi +1 more
The craters on the lunar surface represent unique morphological and mineralogical characteristics. Cardanus (13.2°N; 72.4°W) and Krafft craters (16.6°N; 72.6°W) present in the equatorial transition region of the Moon represents distinctive features. The morphology of crater is studied using high-resolution data of Narrow Angle Camera (NAC) and Wid…
Reply to Comment by Stauning on "The PC Index Variations During 23/24 Solar Cycles: Relation to Solar Wind Parameters and Magnetic Disturbances"
Sormakov, D. A.; Troshichev, O. A.; Dolgacheva, S. A. +1 more
The polar cap magnetic activity index (PC) was approved by IAGA as an index characterizing the solar wind energy input into the magnetosphere. Relation of the PC index to solar wind parameters and solar activity during 23/24 solar cycles has been studied in paper (Troshichev et al., 2021, https://doi.…
Distribution of the diffuse interstellar band λ6614 in the NGC 2264, Rosette Nebula, and S147 regions
Luo, A. -Li; Li, Yin-Bi; Wu, Hong +7 more
Diffuse interstellar bands (DIBs) are absorption features arising from the interstellar medium, for which the carriers remain unclear. In this work, a total of 3115 stars in the regions of NGC 2264, the Rosette Nebula, and S147 are selected from LAMOST-MRS to study the spatial and velocity distributions of the DIB λ6614 carrier. From the spatial d…
Pressure profiles of distant Galaxy clusters with Planck-SPT data
Mazzotta, Pasquale; Bourdin, Hervé; CHEX-MATE Collaboration +2 more
We present a full set of numerical tools to extract Galaxy Cluster pressure profiles from the joint analysis of Planck and South Pole Telescope (SPT) observations. Pressure profiles are powerful tracers of the thermodynamic properties and the internal structure of the clusters. Tracing the pressure over the cosmic times allows one to constraints t…
Ancillary science with ARIEL: feasibility and scientific potential of young stellar object observations
Morales, J. C.; Ábrahám, P.; Kóspál, Á. +7 more
To investigate the feasibility of ancillary target observations with ESA's ARIEL mission, we compiled a list of potentially interesting young stars: FUors, systems harbouring extreme debris discs and a larger sample of young stellar objects showing strong near/mid-infrared excess. These objects can be observed as additional targets in the waiting …
Comparing results of real-scale time MHD modeling with observational data for first flare M 1.9 in AR 10365
Borisenko, Alexey Vasilevich; Podgorny, Igor Maksimovich; Podgorny, Alexander Igorevich
As shown in the first results of MHD simulations in the real scale of time, above the active region (AR) 10365, during the first flare M 1.9 (05/26/2003 05:34) at a height of 16-18 mm (lower corona), a singular line of magnetic field appears. The local maximum of the current density is situated on this singular line. The magnetic field in the vici…
Interstellar polarization and extinction toward the Recurrent Nova T CrB
Nikolov, Yanko
Spectropolarimetry is a powerful tool for diagnostic of interstellar matter and gives information about the geometry of the ejected material after the novae outbursts. In this paper are presented spectropolarimetric observations of the recurrent nova T CrB at quiescence obtained with FoReRo2 attached to the Cassegrain focus of the 2.0 m RCC telesc…
Long-term X-ray spectral variation of the Wolf-Rayet binary WR 102-1 in the Galactic bulge: evidence for wind distortion in the binary
Sugawara, Yasuharu; Ebisawa, Ken; Nagatsuka, Tomoki
WR 102-1 was detected by Suzaku as a conspicuous point source in the 6.7 keV intensity map of the central region of the Milky Way. The source was suggested as a possible Wolf-Rayet binary based on its X-ray and infrared spectral characteristics. The iron line emission is expected to originate in the Wolf-Rayet star's dynamic stellar wind when coll…
New insights into the Triangulum Australis supercluster of galaxies
Böhringer, Hans; Lacerna, Ivan; Quintana, Hernán +1 more
The Triangulum Australis cluster is one of about a dozen nearby massive cluster systems which contribute to the gravitational pull behind the so-called Great Attractor that is dominated by the nearby Shapley Supercluster mass, which conforms the galaxy velocity flows observed in that general direction. Here, we study the structure and dynamical ma…