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Very Large Array Ammonia Observations of the HH 111/HH 121 Protostellar System: A Detection of a New Source with a Peculiar Chemistry
Pineda, Jaime E.; Qin, Sheng-Li; Indebetouw, Remy +4 more
We present the results of Very Large Array NH3 (J,K)=(1,1) and (2,2) observations of the HH 111/HH 121 protostellar system. HH 111, with a spectacular collimated optical jet, is one of the most well-known Herbig-Haro objects. We report the detection of a new source, NH3-S, in the vicinity of HH 111/HH 121 (∼0.03 pc from the H…
Embedded Filaments in IRAS 05463+2652: Early Stage of Fragmentation and Star Formation Activities
Dewangan, L. K.; Ojha, D. K.; Baug, T. +1 more
We present a multiwavelength data analysis of IRAS 05463+2652 (hereafter I05463+2652) to study star formation mechanisms. A shell-like structure around I05463+2652 is evident in the Herschel column density map, which is not associated with any ionized emission. Based on the Herschel submillimeter images, several parsec-scale filaments (including t…
The Early Mars Climate System
Haberle, Robert M.; Catling, David C.; Carr, Michael H. +1 more
Polarization Radiation with Turbulent Magnetic Fields from X-Ray Binaries
Lu, Ju-Fu; Xiang, Fu-Yuan; Zhang, Jian-Fu
We study the properties of polarized radiation in turbulent magnetic fields from X-ray binary jets. These turbulent magnetic fields are composed of large- and small-scale configurations, which result in the polarized jitter radiation when the characteristic length of turbulence is less than the non-relativistic Larmor radius. On the contrary, the …
Evidences of early aqueous Mars: Implications on the origin of branched valleys in the Ius Chasma, Mars
Martha, Tapas R.; Jain, Nirmala; Vamshi, Gasiganti T. +1 more
This study shows results of morphological and spectroscopic analyses of Ius Chasma and its southern branched valleys using Orbiter datasets such as Mars Reconnaissance Orbiter (MRO)-Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), High Resolution Imaging Science Experiment (MRO-HiRISE) and digital terrain model (HRSC-DTM). Result of t…
Nitrogen condensation in Titan's atmosphere under contemporary atmospheric composition
Tokano, Tetsuya
Temperature profiles of Titan's atmosphere obtained by Cassini radio occultations approach the nitrogen condensation temperature curve at some places. This raises the question as to whether nitrogen, Titan's main atmospheric constituent, might condense in some seasons and areas contrary to previous perception. To address this question, possible ar…
XMM-Newton and NuSTAR joint observations of Mrk 915: a deep look into the X-ray properties
Campana, S.; Moretti, A.; Vignali, C. +5 more
We report on the X-ray monitoring programme (covering slightly more than 11 d) carried out jointly by XMM-Newton and NuSTAR on the intermediate Seyfert galaxy Mrk 915. The light curves extracted in different energy ranges show a variation in intensity but not a significant change in the spectral shape. The X-ray spectra reveal the presence of a tw…
Intermittency of the Solar Magnetic Field and Solar Magnetic Activity Cycle
Obridko, V. N.; Sokoloff, D. D.; Shibalova, A. S.
Small-scale solar magnetic fields demonstrate features of fractal intermittent behavior, which requires quantification. For this purpose we investigate how the observational estimate of the solar magnetic flux density B depends on resolution D in order to obtain the scaling lnBD=−k lnD +a in a reasonably wide range. The quantity k demon…
On IMF By -Induced Dawn-Dusk Asymmetries in Earthward Convective Fast Flows
Nilsson, H.; Hamrin, M.; Karlsson, T. +2 more
Recent Climate Variations
Head, James W.; Byrne, Shane; Mischna, Michael A. +2 more