Results 71 to 80 of about 1,148 (222)

Planet Hunters NGTS: New Planet Candidates from a Citizen Science Search of the Next Generation Transit Survey Public Data

The Astronomical Journal
We present the results from the first two years of the Planet Hunters Next Generation Transit Survey (NGTS) citizen science project, which searches for transiting planet candidates in data from the NGTS by enlisting the help of members of the general ...
Sean M. O’Brien, Megan E. Schwamb, Samuel Gill, Christopher A. Watson, Matthew R. Burleigh, Alicia Kendall, Sarah L. Casewell, David R. Anderson, José I. Vines, James S. Jenkins, Douglas R. Alves, Laura Trouille, Solène Ulmer-Moll, Edward M. Bryant, Ioannis Apergis, Matthew Battley, Daniel Bayliss, Nora L. Eisner, Edward Gillen, Michael R. Goad, Maximilian N. Günther, Beth A. Henderson, Jeong-Eun Heo, David G. Jackson, Chris Lintott, James McCormac, Maximiliano Moyano, Louise D. Nielsen, Ares Osborn, Suman Saha, Ramotholo R. Sefako, Andrew W. Stephens, Rosanna H. Tilbrook, Stéphane Udry, Richard G. West, Peter J. Wheatley, Tafadzwa Zivave, See Min Lim, Arttu Sainio   +38 more
doaj   +1 more source

Integrating Astrocytes in the Sleep–Wake Cycle: The Time Is Now

BioEssays, EarlyView.
Astrocytes actively regulate sleep homeostatic and circadian rheostatic processes, underpinning the sleep–wake cycle. By acting as context‐dependent integrators of internal state and rhythmic environmental inputs, they modulate the encoding properties of neuronal circuitries and contribute to salient temporal representations in the brain.
Marco Brancaccio
wiley   +1 more source

Millimagnitude Optical Photometry for the Transiting Planetary Candidate OGLE‐TR‐109 [PDF]

The Astrophysical Journal, 2006
We present precise V-band photometry for the low-amplitude transit candidate star OGLE-TR-109. This is an extreme case among the transiting candidates found by the OGLE group because of the early spectral type of the star (F0V), of the low transit amplitude (A_I=0.008 mag), and of the very short period (P=0.58909 days) of the orbiting companion.
Thomas Szeifert, Andrzej Udalski, Dante Minniti, Maria Teresa Ruiz, José Miguel Fernández, Grzegorz Pietrzyński, Grzegorz Pietrzyński, Wolfgang Gieren, Manuela Zoccali   +8 more
openaire   +4 more sources

Numerical Modeling of Isochoric Heating Experiments Using the Troll Code in the Warm Dense Matter Regime

Contributions to Plasma Physics, EarlyView.
ABSTRACT Experiments of isochoric heating by protons of solid material were recently performed at LULI laser facilities. In these experiments, protons, produced from target normal sheath acceleration (TNSA) of Au foil with the PICO2000 laser, deposit their energy into an aluminum or copper foil initially at room temperature and solid density.
Sébastien Rassou, Marie Bonneau, Christophe Rousseaux, Xavier Vaisseau, Witold Cayzac, Adrien Denoeud, Frédéric Perez, Tom Beaumont, Morris Demoulins, Jean‐Christophe Pain   +9 more
wiley   +1 more source

Exoplanet Detection Using AI in Transit Photometry

, 2023
This study delves into the techniques and results of detecting exoplanets using transit photometry, leveraging data obtained from the Kepler Space Telescope. The research aims to shed light on both manual and automated approaches to exoplanet detection, with a specific emphasis on employing the folding technique to identify recurring patterns in light ...
openaire   +1 more source

Precision Near-Infrared Photometry for Exoplanet Transit Observations. I. Ensemble Spot Photometry for an All-Sky Survey [PDF]

Publications of the Astronomical Society of the Pacific, 2012
Near-IR observations are important for the detection and characterization of exoplanets using the transit technique, either in surveys of large numbers of stars or for follow-up spectroscopic observations of individual planets. In a controlled laboratory experiment, we imaged $\sim 10^4$ critically sampled spots onto an Teledyne Hawaii-2RG (H2RG ...
Clanton, C., Beichman, C., Vasisht, G., Smith, R., Gaudi, B. S.   +4 more
openaire   +6 more sources

Climate and microbial community composition drive shifts in ecosystem function along three parallel elevational gradients

Ecography, EarlyView.
Mountains are home to steep elevational gradients in environmental factors, biodiversity and ecosystem functionality. Though these gradients are tightly connected, little is known about the relative contribution of environmental and biotic factors in driving elevational changes in ecosystem functionality.
Congcong Shen, Michael K. Borregaard, Marcell K. Peters, Xin Jing, Akira S. Mori, Xinyu Xu, Zhi‐Ming Zhang, Lin Zhang, Jonathan M. Adams, Baodong Chen, Guo‐Xin Sun, Li‐Mei Zhang, Yuan Ge   +12 more
wiley   +1 more source

Singular Spectrum Analysis of Exoplanetary Transits

The Astronomical Journal
Transit photometry is currently the most efficient and sensitive method for detecting extrasolar planets (exoplanets) and a large majority of confirmed exoplanets have been detected with this method.
Hossein Fatheddin, Sedighe Sajadian
doaj   +1 more source

Precise Photometry and Spectroscopy of Transits

, 2007
A planetary transit produces both a photometric signal and a spectroscopic signal. Precise observations of the transit light curve reveal the planetary radius and allow a search for timing anomalies caused by satellites or additional planets. Precise measurements of the stellar Doppler shift throughout a transit (the Rossiter-McLaughlin effect) place a
openaire   +2 more sources

Chemical and mineralogical characteristics of tropical soils on the transport of Na+, K+, Ca2+, and Mg2+ from the application of treated wastewater

Journal of Environmental Quality, EarlyView.
Abstract With the search for water security, the reuse of water in irrigation becomes interesting and inevitable. Given the complexity of soil–solute interactions, the use of simplified artificial solutions represents an innovative approach, as it facilitates understanding these interactions while posing no risk to human health or the environment ...
Marina N. Merlo, Michael S. Thebaldi, Miguel A. C. Alvarez, Daniela C. de Jesus, Jaqueline dos S. Soares, Elvis M. de C. Lima, Mateus A. da Silva, Luiz A. Lima, Luiz F. C. de Oliveira   +8 more
wiley   +1 more source