Results 61 to 70 of about 143,610 (241)

Constraints on the Faint End of the Galaxy Stellar Mass Function at z ≃ 4–8 from Deep JWST Data

The Astrophysical Journal
We analyze a sample of 3300 galaxies between redshifts z ≃ 3.5 and z ≃ 8.5 selected from James Webb Space Telescope (JWST) images in the Hubble Ultra Deep Field and UKIDSS Ultra Deep Survey field, including objects with stellar masses as low as ≃10 ^8 M ...
Rafael Navarro-Carrera, Pierluigi Rinaldi, Karina I. Caputi, Edoardo Iani, Vasily Kokorev, Sophie E. van Mierlo   +5 more
doaj   +1 more source

An Extremely Massive White Dwarf Escaped from the Hyades Star Cluster

The Astrophysical Journal Letters, 2023
We searched the Gaia DR3 database for ultramassive white dwarfs with kinematics consistent with having escaped the nearby Hyades open cluster, identifying three such candidates.
David R. Miller, Ilaria Caiazzo, Jeremy Heyl, Harvey B. Richer, Kareem El-Badry, Antonio C. Rodriguez, Zachary P. Vanderbosch, Jan van Roestel   +7 more
doaj   +1 more source

Reconciling observed and simulated stellar halo masses [PDF]

, 2018
We use cosmological hydrodynamical simulations of Milky-Way-mass galaxies from the FIRE project to evaluate various strategies for estimating the mass of a galaxy's stellar halo from deep, integrated-light images.
Chan, Tsang Keung, Escala, Ivanna, Faucher-Giguère, Claude-André, Garrison-Kimmel, Shea, Hopkins, Philip F., Kereš, Dušan, Ma, Xiangcheng, Sanderson, Robyn E., Wetzel, Andrew   +8 more
core   +5 more sources

The COSMOS2015 galaxy stellar mass function [PDF]

Astronomy & Astrophysics, 2017
We measure the stellar mass function (SMF) and stellar mass density of galaxies in the COSMOS field up to z ~ 6. We select them in the near-IR bands of the COSMOS2015 catalogue, which includes ultra-deep photometry from UltraVISTA-DR2, SPLASH, and Subaru/Hyper Suprime-Cam. At z> 2.5 we use new precise photometric redshifts with error σz = 0.03(1 + z)
Davidzon, I., Ilbert, O., Laigle, C., Coupon, J., Mccracken, H. J., Delvecchio, I., Masters, D., Capak, P., Hsieh, B.C., Le Fèvre, O., Tresse, L., Bethermin, M., Chang, Y.Y., Faisst, A.L., Le Floc'H, E., Steinhardt, C., Toft, S., Aussel, H., Dubois, C., Hasinger, G., Salvato, M., Sanders, D.B., Scoville, N., Silverman, J.D.   +23 more
openaire   +5 more sources

Intraoperative Collection of Ascitic Fluid With Intra‐ or Postoperative Reinfusion in Ovarian Cancer: Safety and Feasibility of a Roller Pumping Method

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients with ovarian cancer often present with massive ascites, leading to significant protein loss during surgical procedures. Although cell‐free concentrated ascites reinfusion therapy (CART) is used in palliative settings to mitigate protein loss, its application in intraoperative settings remains unexplored.
Yutaka Yoneoka, Tsukuru Amano, Akimasa Takahashi, Mari Deguchi, Hiroyuki Yamanaka, Yuji Tanaka, Shunichiro Tsuji, Takashi Murakami   +7 more
wiley   +1 more source

A Study of Eight Visual-spectroscopic Southern Binaries Using Recent SOAR Observations

The Astronomical Journal, 2023
Speckle observations performed between 2019 and 2022 with the HRCam attached to the 4.1 m SOAR telescope (Cerro Pachón, Chile) permitted to improve visual orbits of the southern binaries WDS 01243-0655 (BU 1163), WDS 09275-5806 (CHR 240), WDS 12114-1647 (
José A. Docobo, Pedro P. Campo, Jorge Gómez, René A. Méndez, Edgardo Costa   +4 more
doaj   +1 more source

The CMF as provenance of the stellar IMF ?

, 2011
In the present work we examined the hypothesis that, a core mass function (CMF), such as the one deduced for cores in the Orion molecular cloud (OMC), could possibly be the primogenitor of the stellar initial mass function (IMF).
Alves, André, Aspin, Ballesteros-Paredes, Bondi, Bonnell, Bonnell, Bonnell, Bontemps, Bontemps, Chabrier, Clark, Clark, Duquennoy, Enoch, Fischer, Goldsmith, Goodwin, Goodwin, Hunter, Kirk, Kroupa, Krumholz, Lada, Lada, Lada, Larson, Larson, Larson, Luhman, Luhman, Motte, Muench, Nutter, Penston, Rathborne, Reipurth, S. Anathpindika, Sadavoy, Salpeter, Schmeja, Shu, Stamatellos, Swift, Thies, Thies, Tielens, Whitworth, Wilkin   +48 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

High-z Stellar Masses Can Be Recovered Robustly with JWST Photometry

The Astrophysical Journal Letters
Robust inference of galaxy stellar masses from photometry is crucial for constraints on galaxy assembly across cosmic time. Here, we test a commonly used spectral energy distribution (SED) fitting code using simulated galaxies from the S phinx ^20 ...
R. K. Cochrane, H. Katz, R. Begley, C. C. Hayward, P. N. Best   +4 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source