Results 141 to 150 of about 482,777 (285)

A sharp look at the gravitationally lensed quasar SDSS J0806+2006 with Laser Guide Star Adaptive Optics [PDF]

, 2008
We present the first VLT near-IR observations of a gravitationally lensed quasar, using adaptive optics and laser guide star. These observations can be considered as a test bench for future systematic observations of lensed quasars with adaptive optics ...
A. Eigenbrod, Auger, Avila, Claeskens, Claeskens, Courbin, D. Sluse, Eigenbrod, Eigenbrod, Eigenbrod, Eigenbrod, Esslinger, F. Courbin, Ferreras, G. Meylan, Impey, Inada, Keeton, Koopmans, Magain, Mao, McKean, Metcalf, Meylan, Muñoz, Peng, Refsdal, Schechter, Sluse, Wambsganss   +29 more
core   +1 more source

Optical Photometry of the GRB 010222 Afterglow

, 2001
The optical afterglow of GRB 010222 was observed using the recently installed 2-m telescope at the Indian Astronomical Observatory, Hanle, and the telescopes at the Vainu Bappu Observatory, Kavalur, beginning ~ 0.6 day after the detection of the event.
Cowsik, R., Prabhu, T. P., Anupama, G. C., Bhatt, B. C., Sahu, D. K., Ambika, S., Padmakar, Bhargavi, S. G.   +7 more
openaire   +2 more sources

Lactea: Web‐Based Spectrum‐Preserving Multi‐Resolution Visualization of the GAIA Star Catalog

Computer Graphics Forum, EarlyView.
Abstract The explosion of data in astronomy has resulted in an era of unprecedented opportunities for discovery. The GAIA mission's catalog, containing a large number of light sources (mostly stars) with several parameters such as sky position and proper motion, is playing a significant role in advancing astronomy research and has been crucial in ...
Reem Alghamdi, Markus Hadwiger, Guido Reina, Alberto Jaspe‐Villanueva   +3 more
wiley   +1 more source

A multichannel fiber optic photometer present performance and future developments [PDF]

A three channel photometer for simultaneous multicolor observations was designed with the aim of making possible highly efficient photometry of fast variable objects like cataclysmic variables.
Barwig, H., Huber, G., Schoembs, R.
core   +1 more source

Spatially Resolved Stellar Populations of Eight GOODS-South AGN at z~1 [PDF]

, 2008
We present a pilot study of the stellar populations of 8 AGN hosts at z~1 and compare to (1) lower redshift samples and (2) a sample of nonactive galaxies of similar redshift.
Alexander, Antonucci, Barger, Claire E. Max, David C. Koo, David J. V. Rosario, Dickinson, Dickinson, Fan, Fan, Francis, Gilde Paz, Gunn, Jason Melbourne, Koo, Magorrian ., Melbourne, Melbourne, Nolan, Osterbrock, Peng, Retzlaff, S. Mark Ammons, Shlosman   +23 more
core   +1 more source

Characterising Hot Spots of Mediterranean Fruit Fly Infestation in Apple Orchards: Implications for Pest Monitoring and Management

Journal of Applied Entomology, EarlyView.
ABSTRACT The Mediterranean fruit fly (medfly, Ceratitis capitata [Wiedemann]) (Diptera: Tephritidae), is a significant pest causing sizeable economic burden and fruit damage to crops worldwide, especially in the Mediterranean area. In deciduous orchards, monitoring the population of Mediterranean flies is an intensive and expensive process.
A. J. Hill, Y. Cohen, S. Aidlin‐Harari, M. Silberstein, L. Blank, Z. Schmilovitch, O. Mendelsohn, G. Lidor, K. Ohaliav, V. Orlov, P. R. Kongala, M. Ibdah, L. Shaltiel‐Harpaz   +12 more
wiley   +1 more source

Detection of the Sgr A* activity at 3.8 and 4.8 microns with NACO

, 2004
L'-band (lambda=3.8 microns) and M'-band (lambda=4.8 microns) observations of the Galactic Center region, performed in 2003 at VLT (ESO) with the adaptive optics imager NACO, have lead to the detection of an infrared counterpart of the radio source Sgr A*
Balick, Blum, Bower, Clénet, Clénet, Cuadra, D. Gratadour, D. Rouan, DePoy, Diolaiti, E. Gendron, Eisenhauer, F. Lacombe, Forrest, Genzel, Genzel, Ghez, Ghez, Lenzen, Markoff, Moneti, Nayakshin, Ott, P. Léna, R. Genzel, R. Schödel, Reid, Rousset, Schödel, Simons, T. Ott, Tollestrup, Y. Clénet, Yuan, Yuan, Yuan   +35 more
core   +1 more source

The Future of Non‐Invasive Brain Stimulation in Sleep Medicine

Journal of Sleep Research, EarlyView.
ABSTRACT Non‐invasive brain stimulation (NIBS) methods carry particular appeal as non‐pharmacological approaches to inducing or improving sleep. However, intense research efforts to use transcranial magnetic stimulation (TMS) and electrical stimulation (tES) for sleep modulation have not yet delivered evidence‐based NIBS treatments in sleep medicine ...
Lukas B. Krone, Seo Ho Song, Valeria Jaramillo, Ines R. Violante   +3 more
wiley   +1 more source

Tb2(DPA)2(HDPA)2 Green Emitter Coordination Compound: Photometric Analysis and Temperature‐Dependence Luminescence

Applied Organometallic Chemistry, Volume 39, Issue 7, July 2025.
The Tb2(DPA)2(HDPA)2 compound confirmed thermal stability, with potential to be a green emitting phosphor (CIE 1931, x = 0.33, y = 0.56) and usage as an on/off temperature indicator. ABSTRACT Lanthanide‐based coordination compounds are attractive materials for developing light‐emitting systems and optical sensors due to their sharp emissions and long ...
Ch. J. Salas‐Juárez, I. Garduño‐Wilches, G. Chavez‐Esquivel, R. E. Guzmán‐Silva, K. Scanda, M. Centeno, J. C. Guzmán Olguín, R. I. Lopéz‐Esquivel, J. Guzman‐Mendoza, H. I. Beltran   +9 more
wiley   +1 more source

Activation of Glutamatergic Neurons in the Supramammillary Nucleus Promotes the Recovery of Consciousness under Sevoflurane Anesthesia

Advanced Science, Volume 12, Issue 21, June 5, 2025.
Selective lesioning of SuM glutamatergic neurons promoted the induction of and delayed emergence from sevoflurane anesthesia and increased sevoflurane sensitivity. Optogenetic stimulation of SuM glutamatergic neurons or the SuM‐MS projection promoted behavioral arousal and cortical activation under steady‐state sevoflurane anesthesia and reduced the ...
Jiayan Li, Yehui Wu, Yihan Wang, Yumin Wu, Rong Hu, Si Long, Wenqi Huang, Liming Nie, Zhongxing Wang   +8 more
wiley   +1 more source