Results 61 to 70 of about 608,712 (186)

Discovery of metal line emission from the Red star in IP Peg during outburst maximum [PDF]

, 1999
Observations of the eclipsing dwarf nova IP Peg during outburst reveal metal lines in emission, such as Mg II 4481 A. Analysis using Doppler tomography locates emission of helium and metal lines on the inner Roche lobe of the secondary star.
Harlaftis, E. T.
core   +1 more source

Optimization of photomixers and antennas for continuous-wave terahertz emission [PDF]

, 2005
We have studied terahertz emission from interdigitated finger photomixers coupled to planar antenna structures. Using both pulsed and continuous-wave excitation, polarization measurements reveal that the antenna design dominates the properties of the
Baker, C., Bradley, I.V., Davies, A.G., Evans, M.J., Gregory, I.S., Linfield, E.H., Missous, M., Tribe, W.R.   +7 more
core   +1 more source

THERMAL EMISSION OF WASP-14b REVEALED WITH THREESPITZERECLIPSES [PDF]

The Astrophysical Journal, 2013
Exoplanet WASP-14b is a highly irradiated, transiting hot Jupiter. Joshi et al. calculate an equilibrium temperature Teq of 1866 K for zero albedo and reemission from the entire planet, a mass of 7.3 +/- 0.5 Jupiter masses and a radius of 1.28 +/- 0.08 Jupiter radii.
Blecic, Jasmina, Harrington, Joseph, Madhusudhan, Nikku, Stevenson, Kevin B., Hardy, Ryan A., Cubillos, Patricio E., Hardin, Matthew, Campo, Christopher J., Bowman, William C., Nymeyer, Sarah, Loredo, Thomas J., Anderson, David R., Maxted, Pierre F. L.   +12 more
openaire   +4 more sources

Photometric observations of the radio bright B[e]/X-ray binary CI Cam [PDF]

, 2000
We present multiwavelength (optical, IR, radio) observations of CI Cam, the optical counterpart to the transient X-ray source XTE J0421+560. Pre-outburst quiescent observations reveal the presence of a dusty envelope around the system.
Clark, J. S., Coe, M. J., Dieters, S., Efimov, Yu, Fabregat, J., Goranskii, V. P., Haswell, C. A., Hynes, R. I., Larionov, V. M., Lyuty, V. M., McCollough, M., Metlova, N. V., Miroshnichenko, A. S., Pooley, G. G., Robinson, E. L., Roche, P., Shenavrin, V. I., Welsh, W. F.   +17 more
core  

ORFEUS II and IUE Spectroscopy of EX Hydrae [PDF]

, 1999
Using ORFEUS-SPAS II FUV spectra, IUE UV spectra, and archival EUVE deep survey photometry, we present a detailed picture of the behavior of the magnetic cataclysmic variable EX Hydrae. Like HUT spectra of this source, the FUV and UV spectra reveal broad
Bath G. T., Beuermann K., Christopher W. Mauche, Hellier C., Hurwitz M., Ishida M., la Dous C., Nussbaumer H., Rosen S. R., Rosen S. R., Siegel N., Storey P. J., Verbunt F.   +12 more
core   +2 more sources

Radio emission from a pulsar’s magnetic pole revealed by general relativity [PDF]

Science, 2019
General relativity reveals pulsar beams Pulsars are rotating neutron stars that emit beams of radio waves along their magnetic poles, seen as regular pulses if the beam points toward Earth. Desvignes et al. monitored a pulsar for more than a decade, observing how its radio pulses vary.
Gregory Desvignes, Michael Kramer, Kejia Lee, Joeri van Leeuwen, Ingrid Stairs, Axel Jessner, Ismaël Cognard, Laura Kasian, Andrew Lyne, Ben W. Stappers   +9 more
openaire   +6 more sources

Extended OH(1720 MHz) Maser Emission from Supernova Remnants

, 2007
Compact OH(1720 MHz) masers have proven to be excellent signposts for the interaction of supernova remnants with adjacent molecular clouds. Less appreciated has been the weak, extended OH(1720 MHz) emission which accompanies strong compact maser sources.
D. A. Roberts, F. Yusef-Zadeh, Goss, J. W. Hewitt, M. Wardle   +4 more
core   +1 more source

Helioseismic analysis of the solar flare-induced sunquake of 2005 January 15 [PDF]

, 2006
We report the discovery of one of the most powerful sunquakes detected to date, produced by an X1.2-class solar flare in active region 10720 on 2005 January 15.
Besliu-Ionescu, D., Cally, P. S., Donea, A. -C., Lindsey, C., Moradi, H.   +4 more
core   +1 more source

The Influence of the Emission Source on Outcoupling and Directivity of Patterned Perovskite Light-Emitting Diodes

IEEE Photonics Journal, 2021
The perovskite light-emitting diodes (PeLEDs) have attracted considerable research interests in recent years due to their decent and tunable optoelectronic characteristics.
Qing Ci, Xingang Ren, Yeqiang Yan, Hao Ren, Kaikun Niu, Guoxing Sun, Zhixiang Huang, Xianliang Wu   +7 more
doaj   +1 more source

Photoluminescence modification by high-order photonic band with abnormal dispersion in ZnO inverse opal

, 2008
We measured the angle- and polarization-resolved reflection and photoluminescence spectra of ZnO inverse opals. Significant enhancement of spontaneous emission is observed.
C. López, Heeso Noh, Hui Cao, J. Lim, Mark A. Anderson, Michael Scharrer, Robert P. H. Chang   +6 more
core   +1 more source