Results 61 to 70 of about 11,325,029 (225)
Journal of Phycology, EarlyView.Abstract Picocystis salinarum is an early‐diverging chlorophyte and the sole described member of the Picocystophyceae, frequently dominating hypersaline and alkaline lakes despite extreme physicochemical constraints. To elucidate the genomic foundations of its ecological success, we generated a fully annotated, chromosome‐scale nuclear genome assembly ...
Claude Lemieux +2 more
wiley +1 more source
Polarization measurements of some T Tauri stars [PDF]
Symposium - International Astronomical Union, 1987 T Tauri stars show linear polarization typically between 1–3%. A two band linear polarization survey of some T Tauri star was reported earlier by Bastien (1982). Most of the stars show pronounced time variability in polarization and position angle (Bastien, 1980; 1982).
U. C. Joshi +2 more
openaire +1 more source
Edge-on disk around the T Tauri star [MR81] H
, 2009 Aims. Using the speckle camera SHARP at the 3.5 m ESO NTT, K̦hler and collaborators found an object ́ 3.5 mag fainter in K only 1.3'' north-east of the T Tauri star [MR81] Halpha 17 in the Corona Australis (CrA) star-forming region, which could be ...
M. Mugrauer +8 more
core +1 more source
Reality and the Unseen in the Early Fatwas of al‐Manār
The Muslim World, EarlyView.This article explores how discussions of the unseen in the fatwa section of Muḥammad Rashīd Riḍā's journal, al‐Manār, related to larger processes of rationalization, epistemological boundary‐making, and modernization occurring at the turn of the twentieth century. A discursive analysis of a subset of fatwas published between 1903 and 1914 suggests that
Alice Catanzaro
wiley +1 more source
How do T Tauri stars accrete? [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 8 pages, 4 figures, to appear in ...
Lee Hartmann, Jaehan Bae
openaire +2 more sources
An analysis of the Herbig star population and their protoplanetary disks within 1 kpc
Astronomy & AstrophysicsContext. Herbig stars are intermediate mass pre-main sequence stars of 1.5 to ∼15 M⊙ and are between low- and high-mass star formation. Despite the giant exoplanet occurrence rate peaking at intermediate mass stars, a systematic analysis of the complete ...
Stapper L. M. +8 more
doaj +1 more source
Correlating Changes in Spot Filling Factors with Stellar Rotation: The Case of LkCa 4
The Astrophysical Journal, 2023 We present a multi-epoch spectroscopic study of LkCa 4, a heavily spotted non-accreting T Tauri star. Using SpeX at NASA’s Infrared Telescope Facility (IRTF), 12 spectra were collected over five consecutive nights, spanning ≈1.5 stellar rotations.
Facundo Pérez Paolino +6 more
doaj +1 more source
An integrated workflow for Mycoplasma detection and removal from cell cultures and viral stocks
Current Protocols, Volume 6, Issue 11, November 2026.Abstract Contamination of cell cultures and viral stocks with Mycoplasma is one of the most frequent and underdiagnosed problems in laboratories working with these materials, severely affecting experimental reproducibility, data reliability, and biosafety.
Eliza Flores‐Souza +8 more
wiley +1 more source
A Third Star in the T Tauri System
The Astrophysical Journal, 2000 5 pages in AASTeX preprint form, including one grayscale ...
openaire +3 more sources
The Astronomical Journal, 1993 We present an atlas of 96 low dispersion spectra of T Tauri stars, both classical and weak-lined. The flux-calibrated spectra extend from Hβ to well blueward of the Balmer jump. Observed equivalent widths and rough blue veilings are presented. We model stars with excess emission as a combination of a weak-lined T Tauri star of a similar spectral type ...
Jeff A. Valenti +2 more
openaire +1 more source