Results 61 to 70 of about 84,001 (296)

NGC 4654: polarized radio continuum emission as a diagnostic tool for a galaxy--cluster interaction [PDF]

, 2006
A recent comparison between deep VLA HI observations and dynamical models of the Virgo cluster spiral galaxy NGC 4654 has shown that only a model involving a combination of a tidal interaction and ram pressure can reproduce the data.
Chyży, K. T., Otmianowska-Mazur, K., Soida, M., Vollmer, B.   +3 more
core   +2 more sources

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

Advanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan, Nora Fernández Navas, Thorgund Nemec, Ivan Kaban, Ute Hempel, Andrea Voss, Volker Hoffmann, Darius Pohl, Annett Gebert   +8 more
wiley   +1 more source

The Impact of Ram Pressure on the Radio Spectral Index and Magnetic Field of NGC 4522: A High-resolution VLA Continuum Study

The Astrophysical Journal
We present high-resolution Very Large Array continuum observations at the S band (3 GHz, 560 pc scale) and X band (10 GHz, 200 pc scale) of the ram-pressure-stripped Virgo galaxy NGC 4522 to investigate the characteristics of its radio continuum ...
Woorak Choi, Aeree Chung, Chang-Goo Kim, Bumhyun Lee, Luca Cortese, Toby Brown, Barbara Catinella, Eric Emsellem, A. Fraser-McKelvie, Jiayi Sun, Adam Watts   +10 more
doaj   +1 more source

Multiwavelength Variability Analysis of 3C 279

Frontiers in Astronomy and Space Sciences, 2017
We present a multifrequency analysis of the variability in the flat-spectrum radio quasar 3C 279 from 2008 to 2014. Our multiwavelength datasets range from 1 mm to gamma-rays, with additional optical polarimetry.
Víctor M. Patiño-Álvarez, Sunil Fernandes, Vahram Chavushyan, Erique López-Rodríguez, Jonathan León-Tavares, Eric M. Schlegel, Luis Carrasco, José R. Valdés, Alberto Carramiñana   +8 more
doaj   +1 more source

A Lyman-alpha-only AGN from the Sloan Digital Sky Survey

, 2004
The Sloan Digital Sky Survey has discovered a z=2.4917 radio-loud active galactic nucleus (AGN) with a luminous, variable, low-polarization UV continuum, H I two-photon emission, and a moderately broad Lyman-alpha line (FWHM = 1430 km/s) but without ...
Atsuko Nitta, Bergeron J., Bremer M. N., Brenda Frye, Bunker A., Christy A. Tremonti, Damien Hutsemékers, Daniel C. Long, Daniel E. Vanden Berk, David J. Schlegel, De Breuck C., Donald G. York, Donald P. Schneider, Eric Neilsen, Erik A. Hoversten, Gillian R. Knapp, J. Brinkmann, Jurek Krzesinski, Karl Glazebrook, Manzini A., Martin Niederste-Ostholt, Masataka Fukugita, Michael A. Strauss, Michael Harvanek, P. R. Newman, Patrick B. Hall, Pentericci L., S. Kleinman, S. Snedden, Timothy M. Heckman, van Ojik R., Željko Ivezić   +31 more
core   +1 more source

HII Region Ionization of the Interstellar Medium: A Case Study of NGC 7538 [PDF]

, 2016
Using data from the Green Bank Telescope, we analyze the radio continuum (free-free) and radio recombination line (RRL) emission of the compact HII region NGC 7538 (Sharpless 158).
Anderson, L. D., Balser, Dana S., Bania, T. M., Luisi, Matteo, Wenger, Trey V.   +4 more
core   +3 more sources

Radio continuum emission from young stellar objects in L1641

The Astrophysical Journal, 1990
The results of a 6 and 20 cm radio continuum survey of young stellar objects in the L1641 region located south of the Orion Nebula are presented. Four are identified as low-luminosity young stellar objects in L1641 and three more as Herbig-Haro or Herbig-Haro-like objects. These objects have bolometric luminosities between 80 and 300 solar, and their 6-
MORGAN, JA, Snell, RL, STROM, KM
openaire   +2 more sources

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Upper Limits to the Proper Motions of JuMBO 24, a Jupiter-mass Binary Object Candidate in Orion

The Astrophysical Journal
Using JWST near-infrared data of the inner Orion Nebula, S. G. Pearson & M. J. McCaughrean detected 40 binary systems they proposed to be Jupiter-mass binary objects (JuMBOs)—although their actual nature is still in debate. Only one of the objects, JuMBO
Luis F. Rodríguez, Laurent Loinard, Luis A. Zapata, Gisela N. Ortiz-León   +3 more
doaj   +1 more source

Infrared Supernova Remnants in the Spitzer GLIMPSE Field

, 2006
We have searched for infrared emission from supernova remnants (SNRs) included in the Spitzer Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) field.
Lee, Ho-Gyu
core   +1 more source