Search Publications
Missions
Journals
Publication Years
The Gran Telescopio Canarias OSIRIS broad-band first data release
Cortés-Contreras, M.; Bouy, H.; Solano, E. +4 more
We present the first release of GTC OSIRIS broad-band data archive. This is an effort conducted in the framework of the Spanish Virtual Observatory to help optimize science from the Gran Telescopio Canarias Archive. Data Release 1 includes 6788 broad-band images in the Sloan griz filters obtained between 2009 April and 2014 January and the associa…
Postimpact Evolution of the Southern Hale Crater Ejecta, Mars
Balme, M. R.; Brough, S.; Ross, N. +4 more
As one of the youngest large (>100 km wide) impacts on Mars, Hale crater offers a unique opportunity to observe well-preserved deposits of Mars' former interior. We utilize visible imagery (Context Camera [CTX] and High Resolution Imaging Science Experiment [HiRISE]) and elevation data (Mars Orbiter Laser Altimeter [MOLA], High Resolution Stere…
The First Orbits of Six Wide Double Stars in the Solar Neighborhood Based on Gaia DR2 Observations
Romanenko, L. G.; Kiyaeva, O. V.
The apparent motion parameter (AMP) method is designed to determine the orbits of wide pairs of double stars with orbital periods of hundreds and thousands of years. This is a dynamical method using all that is known about the star at one moment to reconstruct its complete orbit within the two-body problem. The Gaia DR2 catalog contains all of the…
Solar System Encounters with Open Star Clusters
Vereshchagin, S. V.; Chupina, N. V.; Sizova, M. D. +1 more
The time and minimum distances of approaches were calculated more than 100 open star clusters (OSCs) near the Solar System over the past 5 Myr. It was shown that the closest proximity of the centers of the OSCs to the Solar System usually exceeded 60 pc. The Hyades cluster approached the Solar System at ~25 pc. The effect of such encounters on the…
On the Emission Region of Type II Radio Bursts in Interplanetary Shock Fronts
Aguilar-Rodriguez, E.; Corona-Romero, P.
We analyze Type II radio emissions observed by the Radio and Plasma Waves instrument onboard Wind to determine the emission region in shock fronts, using the blast wave reconstruction technique. Our results suggest that the processes of emission of a Type II radio burst occur not only in the upstream region of the shock, i.e. the region that prece…
ALMA band 8 observations of DLA 2233+131 at z = 3.150
Kajisawa, Masaru; Nagao, Tohru; Kashikawa, Nobunari +8 more
We present our ALMA Band 8 observations of a damped Ly $\alpha$ absorption (DLA) system at $z = 3.150$ observed in the spectrum of the quasar Q2233+131 at $z = 3.295$ . The optical counterpart of this DLA has been identified and it shows a double-peaked Ly $\alpha$ emission line. Since one possible origin of DLAs at high redshift is an outflowing …
Massive Stars in the SDSS-IV-APOGEE Survey: Wolf-Rayet Stars of the WN Type
Minniti, Dante; Hernández, Jesús; Roman-Lopes, Alexandre +3 more
In this paper, we describe the results obtained in our study of Galactic Wolf-Rayet stars of the WN type, using the APOGEE2 spectrographs. The APOGEE2 WN star near-infrared spectra presented here were selected through a careful examination of the APOGEE2 DR16 sample, being compound of at least one exemplar of each Wolf-Rayet star from WN4 to WN11 …
Holding the Cosmos in Your Hand: Developing 3D Modeling and Printing Pipelines for Communications and Research
Arcand, Kimberly K.; Price, Sara R.; Watzke, Megan
Three-dimensional (3D) visualization has opened up a universe of possible scientific data representations. 3D printing has the potential to make seemingly abstract and esoteric data sets accessible, particularly through the lens of translating data into forms that can be explored in the tactile modality for people who are blind or visually impaire…
Flare Expansion to a Magnetic Rope Accompanied by Rare Radio Bursts
Dudík, Jaroslav; Kašparová, Jana; Zemanová, Alena +1 more
We present multispectral analysis (radio, Hα, ultraviolet (UV)/extreme ultraviolet (EUV), and hard X-ray) of a confined flare from 2015 March 12. This flare started within the active region NOAA 12 297 and then it expanded into a large preexisting magnetic rope embedded with a cold filament. The expansion started with several brightenings located …
Magnetic field structure of the Galactic plane from differential analysis of interstellar polarization
Nagata, Tetsuya; Zenko, Tetsuya; Matsunaga, Noriyuki +4 more
A new method for measuring the global magnetic field structure of the Galactic plane is presented. We have determined the near-infrared polarization of field stars around 52 Cepheids found in recent surveys toward the Galactic plane. The Cepheids are located at the galactic longitudes $-10^{\circ} \le l \le +10.^{\!\!\!\circ }5$ and latitudes $-0.…