Results 111 to 120 of about 478,002 (271)

Millimagnitude Photometry for Transiting Extrasolar Planetary Candidates: II. Transits of OGLE-TR-113-b in the Optical and Near-IR [PDF]

Astrophys.J.660:850-857,2007, 2007
We present precise V and Ks-band transit photometry for the planetary host star OGLE-TR-113. Using the Ks-band photometry, we confirm the dwarf nature of OGLE-TR-113, and obtain new estimates for its effective temperature, distance and reddening. We employ the V-band photometry to obtain planetary and orbit parameters from the transit fit, a= (0.0232 ...
arxiv   +1 more source

The HD 192263 system: planetary orbital period and stellar variability disentangled [PDF]

, 2012
As part of the Transit Ephemeris Refinement and Monitoring Survey (TERMS), we present new radial velocities and photometry of the HD 192263 system. Our analysis of the already available Keck-HIRES and CORALIE radial velocity measurements together with ...
Andrew W. Howard, Bodenheimer, Butler, David R. Ciardi, Debra A. Fischer, Diana Dragomir, Dragomir, Eric L. N. Jensen, Gaudi, Genady Pilyavsky, Gregory Laughlin, Gregory W. Henry, Henry, Howard, Howard, Jason T. Wright, Jaymie M. Matthews, Kane, Kane, Kane, Kane, Kaspar von Braun, Kazarovets, Mandel, Paulson, Pilyavsky, Pojmanski, Saar, Santos, Sharon X. Wang, Stephen R. Kane, Suvrath Mahadevan, Takeda, Udry, Valenti, Valenti, van Belle, Vogt, Wright   +38 more
core   +6 more sources

Detecting the Undetectable: Advances in Methods for Identifying Small Tau Aggregates in Neurodegenerative Diseases

ChemBioChem, EarlyView.
This review explores current methods for detecting and characterising small tau aggregates, which are increasingly recognised as key drivers of neurotoxicity in tauopathies. It discusses emerging techniques such as single‐molecule pull‐down (SiMPull), single‐molecule Förster resonance energy transfer (smFRET), and cryo‐electron tomography (cryo‐ET ...
Dorothea Böken, Yunzhao Wu, Ziwei Zhang, David Klenerman   +3 more
wiley   +1 more source

Detecting Planetary Oblateness in the Era of JWST: A Case Study of Kepler-167e

The Astronomical Journal
Planets may be rotationally flattened, and their oblateness thus provides useful information on their formation and evolution. Here, we develop a new algorithm that can compute the transit light curve due to an oblate planet very efficiently and use it ...
Quanyi Liu, Wei Zhu, Yifan Zhou, Zhecheng Hu, Zitao Lin, Fei Dai, Kento Masuda, Sharon X. Wang   +7 more
doaj   +1 more source

Precision photometry with difference imaging in the WTS

EPJ Web of Conferences, 2013
The Wide Field Camera Transit Survey is a pioneer program aimed to search for extra-solar planets in the near-infrared. The standard data reduction pipeline of the program uses aperture photometry to construct the light curves. We alternatively apply the
Pinfield D.J., Kovács G., Hodgkin S.T., Birkby J.L., Saglia R.P., Zendejas J., Koppenhoefer J., Sipőcz B.   +7 more
doaj   +1 more source

Photometry's bright future: Detecting Solar System analogues with future space telescopes [PDF]

ApJ (2015), 810, 29, 2015
Time-series transit photometry from the Kepler space telescope has allowed for the discovery of thousands of exoplanets. We explore the potential of yet improved future missions such as PLATO 2.0 in detecting solar system analogues. We use real-world solar data and end-to-end simulations to explore the stellar and instrumental noise properties.
arxiv   +1 more source

Millimagnitude Photometry for Transiting Extrasolar Planetary Candidates III: Accurate Radius and Period for OGLE-TR-111-b [PDF]

, 2007
We present accurate V-band photometry for a planetary transit of OGLE-TR-111 acquired with VIMOS at the ESO Very Large Telescope. The measurement of this transit allows to refine the planetary radius, obtaining R_p= 1.01 +/- 0.06 R_J.
Andrzej Udalski, Dante Minniti, Grzegorz Pietrzynski, Jose Miguel Fernandez, Manuela Zoccali, Maria Teresa Ruiz, Patricio Rojo, Rodrigo F. Diaz, Udalski A., Wolfgang Gieren   +9 more
core   +3 more sources

Apparent Reversal of Allosteric Response in Mycobacterium tuberculosis MenD Reveals Links to Half‐of‐Sites Reactivity

ChemBioChem, EarlyView.
A combination of computational, biochemical and structural studies on allostery mutants of Mtb‐MenD, a menaquinone (vitamin K2) biosynthesis enzyme from a human pathogen, yields insight into the interrelationship between allosteric and half‐of‐sites reactivity mechanisms.
Ngoc Anh Thu Ho, Fiona M. Given, Tamsyn Stanborough, Michelle Klein, Timothy M. Allison, Esther M. M. Bulloch, Wanting Jiao, Jodie M. Johnston   +7 more
wiley   +1 more source

MOST SPACE TELESCOPE PHOTOMETRY OF THE 2010 JANUARY TRANSIT OF EXTRASOLAR PLANET HD80606b [PDF]

, 2012
We present observations of the full 2010 January transit of HD80606b from the Canadian microsatellite, Microvariability and Oscillations of Stars. By employing a space-based telescope, we monitor the entire transit, thus limiting systematic errors that ...
J. Roberts, J. Barnes, J. Rowe, J. Fortney   +3 more
semanticscholar   +1 more source

Constraining the Densities of the Three Kepler-289 Planets with Transit Timing Variations

The Astronomical Journal, 2023
Kepler-289 is a three-planet system containing two sub-Neptunes and one cool giant planet orbiting a young, Sun-like star. All three planets exhibit transit timing variations (TTVs), with both adjacent planet pairs having orbital periods close to the 2:1
Michael Greklek-McKeon, Heather A. Knutson, Shreyas Vissapragada, Daniel Jontof-Hutter, Yayaati Chachan, Daniel Thorngren, Gautam Vasisht   +6 more
doaj   +1 more source