Results 31 to 40 of about 34,781 (302)

Chandra Proper Motions and Milliarcsecond Astrometry of 19 Pulsars

The Astrophysical Journal
We present X-ray proper motion (PM) measurements of 19 pulsars using new and archival data from the Chandra X-ray Observatory, including pulsar wind trails and X-ray filaments. Precise X-ray PMs are often limited by uncertainties in aligning observations
Jack T. Dinsmore, Roger W. Romani
doaj   +1 more source

Membership determination of stars using proper motions in the region of the open cluster M11

, 1998
Relative proper motions of 872 stars in the open cluster M 11 region are reduced using 10 plate pairs taken over time baselines of 16 similar to 70 years with the double astrograph telescope of Shanghai Observatory. The scale is 30 "/mm.
J.-L. Zhao, Tian, KP, Zhao, JL, K.-P. Tian, C.-G. Su, Su, CG   +5 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

The Timing and Polarization of PSR J0002+6216

The Astrophysical Journal
The combined timing analysis of data from the Five-hundred-meter Aperture Spherical radio Telescope (FAST) and the Fermi Large Area Telescope confirmed that PSR J0002+6216 is not a hyper-velocity (exceeding 1000 km s ^−1 ) pulsar.
Y. Wei, N. Wang, J. P. Yuan, J. M. Yao, M. Y. Ge, S. J. Dang, D. Zhao, F. F. Kou, P. Liu, J. T. Bai   +9 more
doaj   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

The Hubble Missing Globular Cluster Survey

Astronomy & Astrophysics
The Hubble Missing Globular Cluster Survey has secured high-quality astro-photometric data in two bands for 34 clusters never observed with HST. When combined with Gaia astrometry, this dataset enables the investigation of the bulk motion and the ...
Rosignoli L., Libralato M., Pascale R., Massari D., Dalessandro E., Ceccarelli E., Baumgardt H., Bellazzini M., Bellini A., Aguado-Agelet F., Cassisi S., Monelli M., Mucciarelli A., Pancino E., Salaris M., Dodd E., Ferraro F. R., Lanzoni B.   +17 more
doaj   +3 more sources

The Proper Motion of the High Galactic Latitude Pulsar Calvera

The Astrophysical Journal
Calvera (1RXS J141256.0+792204) is a pulsar of characteristic age 285 kyr at a high Galactic latitude of b = +37°, detected only in soft thermal X-rays.
M. Rigoselli, S. Mereghetti, J. P. Halpern, E. V. Gotthelf, C. G. Bassa   +4 more
doaj   +1 more source

Hubble Space Telescope Proper Motion Measurements of Supernova Remnant N132D: Center of Expansion and Age

The Astrophysical Journal, 2023
We present proper motion measurements of the oxygen-rich ejecta of the LMC supernova remnant N132D using two epochs of Hubble Space Telescope Advanced Camera for Surveys data spanning 16 years.
John Banovetz, Dan Milisavljevic, Niharika Sravan, Kathryn E. Weil, Bhagya Subrayan, Robert A. Fesen, Daniel J. Patnaude, Paul P. Plucinsky, Charles J. Law, William P. Blair, Jon A. Morse   +10 more
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

A GLOBAL CORRECTION TO PPMXL PROPER MOTIONS

, 2016
In this paper we note that extragalactic sources seem to have non-zero proper motions in the PPMXL proper motion catalog. We collect a large, all sky sample of extragalactic objects and fit their reported PPMXL proper motions to an ensemble of spherical ...
Roeser, Siegfried, Vickers, John J., Grebel, Eva K.   +2 more
core   +1 more source