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Four New Eclipsing Binary Systems in the TESS field: CD-34 13220, HD 295082, TYC 6484-426-1 and TYC 6527-2310-1
Ulaş, Burak
We present the first evidence for the binarity of four targets in the TESS field. The temperatures are estimated by SED analysis and the orbital periods are determined. The TESS light curves of the systems are analyzed and the orbital and the absolute parameters are derived. The targets are also compared to well-studied binary systems with the sam…
Small-Scale Magnetic Structures: Cluster Observations
Gedalin, Michael; Walker, Simon N.; Balikhin, Michael A. +2 more
Within the inner magnetosphere, the occurrence of plasma waves and/or magnetic field structures plays an important role in the dynamics of the particle populations, accelerating some particles to higher energies while scattering others. The 2013 Cluster Inner Magnetosphere Campaign was designed to investigate this process based on observations mad…
The Herschel SPIRE Fourier Transform Spectrometer Spectral Feature Finder - V. Rotational measurements of NGC 891
Valtchanov, I.; Spencer, L. D.; Hładczuk, N. +2 more
The ESA Herschel Spectral and Photometric Imaging Receiver (SPIRE) Fourier Transform Spectrometer (FTS) Spectral Feature Finder (FF) project is an automated spectral feature fitting routine developed within the SPIRE instrument team to extract all prominent spectral features from all publicly available SPIRE FTS observations. In this work, we demo…
Anomalous Hα Emission Line Profile Detected at the Center of DDO 53
McQuinn, Kristen B. W.; van Zee, Liese; Hunter, Laura C. +1 more
We present the detection of a very broad (FWHM = 670 ± 17 km s-1), low-intensity Hα emission line component near the center of DDO 53, a star-forming dwarf irregular galaxy located in the M81 group. The broad component is found at the base of a bright and narrow (FWHM = 38 ± 2 km s-1) component. Using WIYN/Sparsepak optical s…
CCD Measurements of Double Stars at ASV and NAO Rozhen in 2019 and 2020
Cvetković, Zorica; Pavlović, Rade; Boeva, Svetlana
We continued our series of CCD observations of double and multiple stars during 2019 and 2020. A total of 331 pairs were observed at two stations, Serbian Astronomical Station on the mountain of Vidojevica (ASV) and Bulgarian National Astronomical Observatory at Rozhen (NAOR). They were performed using two telescopes, 1.4 m at ASV, and 2 m at NAOR…
Modeling solar illuminance during solar eclipses using solar image data
Muhamad, Johan
During a solar eclipse, the solar illuminance varies with time depending on the phase of the eclipse. Measuring the solar illuminance during a solar eclipse has been one of the most common projects conducted by students as well as amateur astronomers owing to the simplicity of its measurement. Despite extensive measurements conducted during previo…
Geological context of recent Lunar landing sites using Multispectral analysis.
Foing, Bernard; Mcilquham, Jourdain; Borst, Anouk M. +1 more
Geological context of recent lunar landing sites using multispectral analysis. (Mcilquham J, Borst A, Allender E and Foing B)The Moon Mineralogy Mapper (M3) was a guest instrument aboard the Chandrayaan-1 mission. The instrument collected spectral data, ranging from 430 nm to 3000 nm at an average resolution of 140 m/pixel. This research utilises …
Prediction of amphipathic helix—Membrane interactions with Rosetta
Meiler, Jens; Gulsevin, Alican
Planetary topography measurement by descent stereophotogrammetry
Jones, G. H.; Brydon, G.; Persaud, D. M.
Digital Terrain Models (DTMs) provide valuable insights into the nature of solar system surfaces, facilitating geological analysis, landing site selection and characterisation, and contextualising in situ measurements. For missions to solar system bodies for which orbiters and soft landed platforms are technologically or financially challenging to…
Spectral classification and MGM-based mineralogical characterization of hydrated phases: The Nili Fossae case, Mars
Altieri, Francesca; Carli, Cristian; Serventi, Giovanna +2 more
Mars has a relatively tenuous atmosphere, the remote-sensed spectral data of the surface are affected by the presence of the atmosphere. In particular the water and CO2 absorption of the atmosphere are in the same spectral region as water, OH- and (CO3)2- in minerals. An accurate correction of the gaseou…