Zobrazeno 1 - 10
of 5 067
pro vyhledávání: '"Jeffery, C."'
Autor:
Balakrishnan, Sudarsan, Linhardt, Laura E., Blackmon, Jeffery C., Deibel, Catherine M., Gardiner, Hannah E., Macon, Kevin T., Rasco, Bertis C., Matoš, Milan, Santiago-Gonzalez, Daniel, Baby, Lagy T., Wiedenhöver, Ingo, Koshchiy, Evgeniy, Rogachev, Grigory, Bardayan, Daniel W.
Background: The rate of energy production in the hot-CNO cycle and breakout to the rapid-proton capture process in Type I X-ray bursts is strongly related to the $^{14}$O($\alpha,p$)$^{17}$F reaction rate. The properties of states in $^{18}$Ne near $
Externí odkaz:
http://arxiv.org/abs/2411.04288
Autor:
Dorsch, M., Jeffery, C. S., Monai, A. Philip, Tout, C. A., Snowdon, E. J., Monageng, I., Scott, L. J. A., Miszalski, B., Woolf, V. M.
Publikováno v:
A&A 691, A165 (2024)
Magnetic fields with strengths ranging from 300 to 500 kG have recently been discovered in a group of four extremely similar helium-enriched hot subdwarf (He-sdO) stars. Besides their strong magnetic fields, these He-sdO stars are characterised by co
Externí odkaz:
http://arxiv.org/abs/2410.02737
Heavy metal subdwarfs are a class of hot subdwarfs with very high abundances of heavy elements, typically around 10 000 times solar. They include stars which are strongly enhanced in either lead or zirconium, as well as other elements. Vertical strat
Externí odkaz:
http://arxiv.org/abs/2403.19071
Autor:
Dawson, H., Geier, S., Heber, U., Pelisoli, I., Dorsch, M., Schaffenroth, V., Reindl, N., Culpan, R., Pritzkuleit, M., Vos, J., Soemitro, A. A., Roth, M. M., Schneider, D., Uzundag, M., Vučković, M., Amaral, L. Antunes, Istrate, A. G., Justham, S., Østensen, R. H., Telting, J. H., Djupvik, A. A., Raddi, R., Green, E. M., Jeffery, C. S., Kepler, S. O., Munday, J., Steinmetz, T., Kupfer, T.
We present the first volume-limited sample of spectroscopically confirmed hot subluminous stars out to 500 pc, defined using the accurate parallax measurements from the {\em Gaia} space mission data release 3 (DR3). The sample comprises a total of 39
Externí odkaz:
http://arxiv.org/abs/2403.15513
Blue large-amplitude pulsators (BLAPs) are hot low-mass stars which show large-amplitude light variations likely due to radial oscillations driven by iron-group opacities. Period changes provide evidence of both secular contraction and expansion amon
Externí odkaz:
http://arxiv.org/abs/2311.07812
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 527, Issue 3, January 2024, Pages 5408-5428
Hydrogen deficient stars include the cool R CrB variable (RCBs) and hydrogen-deficient carbon (HdCs) giants through extreme helium stars (EHes) to the very hot helium-rich subdwarfs (He-sdO and O(He) stars) and white dwarfs. With surfaces rich in hel
Externí odkaz:
http://arxiv.org/abs/2310.15869
Introduction 61Cu (T1/2 = 3.33 hr, Eβ= 1.22 MeV, 61.4 %) is an attractive isotope for positron emission tomography (PET) radiopharmaceutical agents such as ATSM and PTSM. Various separation processes have been reported for the production of 61Cu on
Externí odkaz:
https://hzdr.qucosa.de/id/qucosa%3A22304
https://hzdr.qucosa.de/api/qucosa%3A22304/attachment/ATT-0/
https://hzdr.qucosa.de/api/qucosa%3A22304/attachment/ATT-0/
Autor:
Price, R. I., Sheil, R. W., Scharli, R. K., Chan, S., Gibbons, P., Jeffery, C., Morandeau, L.
Introduction The 80kD glycoprotein transferrin (TF) and its related receptor (TFR1) play a major role in the recruitment by cancer cells of factors for their multiplication, adhesion, invasion and metastatic potential. Though primarily designed to bi
Externí odkaz:
https://hzdr.qucosa.de/id/qucosa%3A22287
https://hzdr.qucosa.de/api/qucosa%3A22287/attachment/ATT-0/
https://hzdr.qucosa.de/api/qucosa%3A22287/attachment/ATT-0/
Autor:
Armstrong, Samuel E., Klusty, Mitchell A., Mullen, Aaron D., Talbert, Jeffery C., Bumgardner, V. K. Cody
Developing and enforcing study protocols is crucial in medical research, especially as interactions with participants become more intricate. Traditional rules-based systems struggle to provide the automation and flexibility required for real-time, pe
Externí odkaz:
http://arxiv.org/abs/2305.04411
We have performed a detailed spectral analysis of the helium-rich hot subdwarf EC 20187-4939 using data obtained in the SALT survey of helium-rich hot subdwarfs. We have measured its effective temperature, surface gravity and chemical abundances from
Externí odkaz:
http://arxiv.org/abs/2303.01367