Results 101 to 110 of about 8,054,126 (389)

Starspot signature on the light curve: Learning about the latitudinal distribution of spots [PDF]

, 2016
Quasi-periodic modulations of the stellar light curve may result from dark spots crossing the visible stellar disc. Due to differential rotation, spots at different latitudes generally have different rotation periods.
A. R. G. Santos, A. R. G. Santos, Margarida S. Cunha, P. Avelino, Rafael A. García, S. Mathur   +5 more
semanticscholar   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

The first photometric investigation of two short-period Algol-type eclipsing binaries: IW UMa and V367 Gem

Frontiers in Astronomy and Space Sciences
IntroductionThe first multi-color photometric observations and low-resolution spectra of the Algol-type short-period eclipsing binary systems IWUMa and V367 Gem are presented here.
Xiao-Man Tian, Lin-Qiao Jiang, Zhi-Hua Wang, Jing-Jing Wang   +3 more
doaj   +1 more source

Photometric Observations and Light Curve Analysis of BL Eridani [PDF]

Journal of Astronomy and Space Sciences, 2006
We present light curves of a short period binary system BL Eridani. The light curves were observed with {it VRI} filters by a 50cm wide field robotic telescope at Siding Spring Observatory (SSO), equipped with a 2K CCD camera, which was developed by ...
Wonyong Han, Hong-Suh Yim, Chung-Uk Lee, Jae-Hyuck Youn, Joh-Na Yoon, Ho-Il Kim, Hong-Kyu Moon, Yong-Ik Byun, Sunyoup Park   +8 more
doaj   +1 more source

Phase light curves for extrasolar Jupiters and Saturns [PDF]

, 2004
We predict how a remote observer would see the brightness variations of giant planets similar to Jupiter and Saturn as they orbit their central stars. We model the geometry of Jupiter, Saturn and Saturn's rings for varying orbital and viewing parameters.
Carolyn C. Porco, Clampin M., Daniel D. R. Bayliss, Henry B. Throop, Luke Dones, Penny D. Sackett, S. Seager, Trauger J., Udalski A., Udalski A., Udalski A., Ulyana A. Dyudina   +11 more
core   +2 more sources

EXTRASOLAR STORMS: PRESSURE-DEPENDENT CHANGES IN LIGHT-CURVE PHASE IN BROWN DWARFS FROM SIMULTANEOUS HST AND SPITZER OBSERVATIONS [PDF]

, 2016
We present Spitzer/Infrared Array Camera Ch1 and Ch2 monitoring of six brown dwarfs during eight different epochs over the course of 20 months. For four brown dwarfs, we also obtained simulataneous Hubble Space Telescope (HST)/WFC3 G141 grism spectra ...
Hao Yang, D. Apai, M. Marley, T. Karalidi, D. Flateau, A. Showman, S. Metchev, E. Buenzli, Jacqueline Radigan, É. Artigau, P. Lowrance, A. Burgasser   +11 more
semanticscholar   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Observations and light curve solutions of four ultrashort-period binaries [PDF]

Serbian Astronomical Journal, 2016
The paper presents light curve solutions of our observations of four new ultrashort-period eclipsing binaries with MS components. Two of them have periods almost at the upper limit (0.22 days) of the ultrashort-period binaries, while the periods
Kjurkchieva D., Popov V., Vasileva D., Petrov N.   +3 more
doaj   +1 more source

Hubble Residuals of Nearby Type Ia Supernovae Are Correlated with Host Galaxy Masses

, 2010
From Sloan Digital Sky Survey u'g'r'i'z' imaging, we estimate the stellar masses of the host galaxies of 70 low redshift SN Ia (0.015 < z < 0.08) from the hosts' absolute luminosities and mass-to-light ratios.
Abazajian, Blanton, Blanton, Conley, Conley, Cooper, David L. Burke, Eisenstein, Filippenko, Fioc, Fioc, Gallagher, Gallagher, Hicken, Hicken, Howell, Ivanov, Jha, Kaisey S. Mandel, Kasen, Kasen, Kelly, Kelly, Kessler, Komatsu, Kowalski, Lair, Malcolm Hicken, Mandel, Matheson, Mukherjee, Neill, Patrick L. Kelly, Perlmutter, Pozzetti, Prieto, Rana, Raskin, Riess, Riess, Riess, Riess, Robert P. Kirshner, Scannapieco, Schlegel, Shaw, Sullivan, Timmes, Tremonti, Truran, Wang, Wood-Vasey, Wood-Vasey, York   +53 more
core   +1 more source

Time Series Prediction and Anomaly Detection of Light Curve Using LSTM Neural Network

Journal of Physics: Conference Series, 2018
Ground-based Wide-angle Camera array (GWAC) is a short-time survey telescope which can produce images every 15 seconds for more than 30,000 stars. Light curve is generated from star image with a series of processing. Research on light curve is a new task
Runtian Zhang, Qiang Zou
semanticscholar   +1 more source