Search Publications
Missions
Journals
Publication Years
A Note on Capon's Minimum Variance Projection for Multi-Spacecraft Data Analysis
Narita, Yasuhito
Capon's minimum variance projection for the multi-point measurements is revisited using the method of likelihood function to derive the minimum variance projection and a simplified error estimate analytically. Theoretical construction of the minimum variance projection assumes a Gaussian form of the likelihood function and also regards the data co…
Small-scale dipolarization fronts in the Earth's magnetotail
Zhou, Meng; Huang, Jing; Liu, Jiang +3 more
Herschel water maps towards the vicinity of the black hole Sgr A*
Martín-Pintado, J.; Harris, A. I.; van der Werf, P. +8 more
Aims: We study the spatial distribution and kinematics of water emission in a 8 × 8 pc2 region of the Galactic center (GC) that covers the main molecular features around the supermassive black hole Sagittarius A* (Sgr A*). We also analyze the water excitation to derive the physical conditions and water abundan…
Massive Young Stellar Objects and Outflow in the Infrared Dark Cloud G79.3+0.3
Zhang, Qizhou; Hora, Joseph L.; Laws, Anna S. E.
G79.3+0.3 is an infrared dark cloud in the Cygnus-X complex that is home to massive deeply embedded young stellar objects (YSOs). We have produced a Submillimeter Array (SMA) 1.3 mm continuum image and 12CO line maps of the eastern section of G79.3+0.3 in which we detect five separate YSOs. We have estimated physical parameters for thes…
INTEGRAL results on gamma-ray bursts and polarization of hard X-ray sources
Mereghetti, Sandro; Götz, Diego; Laurent, Philippe +9 more
In this paper we first review the results obtained by the INTEGRAL mission in the domain of Gamma-Ray Bursts (GRBs), thanks to the INTEGRAL Burst Alert System, which is able to deliver near real-time alerts for GRBs detected within the IBIS field of view. More than 120 GRBs have been detected to date and we summarize their properties here. In the …
Wavelet analysis of the magnetotail response to solar wind fluctuations during HILDCAA events
Echer, Ezequiel; Marques de Souza Franco, Adriane; José Alves Bolzan, Mauricio
In this work a study of the effects of the high-intensity long-duration continuous AE activity (HILDCAAs) events in the magnetotail was conducted. The aim of this study was to search the main frequencies during HILDCAAs in the Bx component of the geomagnetic field in the magnetotail, as well as the main frequencies, at which the magneto…
Metallicity and absolute magnitude calibrations for F-G type main-sequence stars in the Gaia era
Bilir, S.; Ak, T.; Yontan, T. +3 more
In this study, photometric metallicity and absolute magnitude calibrations were derived using F-G spectral type main-sequence stars in the Solar neighbourhood with precise spectroscopic, photometric and Gaia astrometric data for UBV photometry. The sample consists of 504 main-sequence stars covering the temperature, surface gravity and colour inde…
Multiwavelength Study of the X-Ray Bright Supernova Remnant N300-S26 in NGC 300
Williams, Benjamin F.; Garofali, Kristen; Gross, Jacob +3 more
We present a multiwavelength examination of the supernova remnant (SNR) S26 in the nearby galaxy NGC 300 using data from Chandra X-ray Observatory, XMM-Newton X-ray Observatory, Hubble Space Telescope (HST), the Very Large Array, and the Australia Telescope Compact Array. We simultaneously fit all of the available X-ray data with a thermal plasma …
OGLE-2018-BLG-0022: First Prediction of an Astrometric Microlensing Signal from a Photometric Microlensing Event
Han, Cheongho; Udalski, Andrzej; Lee, Chung-Uk +68 more
In this work, we present the analysis of the binary microlensing event OGLE-2018-BLG-0022 that is detected toward the Galactic bulge field. The dense and continuous coverage with the high-quality photometry data from ground-based observations combined with the space-based Spitzer observations of this long timescale event enables us to uniquely det…
Selection of M-dwarfs using Gaia, WISE, and 2MASS
Tinney, C. G.; Sharma, S.; Wright, D. +1 more
We present criteria for the selection of M-dwarfs down to G < 14.5 using all-sky survey data, with a view to identifying potential M-dwarfs, to be confirmed spectroscopically by the FunnelWeb survey. Two sets of criteria were developed. The first, based on absolute magnitude in the Gaia G passband, with MG > 7.7, selects 76,392 st…