Results 51 to 60 of about 1,250,237 (300)
Irregular changes in H α emission line of V423 Aur observed by LAMOST Medium-Resolution Spectrographs [PDF]
Research in Astronomy and Astrophysics, 2020 Abstract We obtained seven spectra of the Be star V423 Aur on 2017 Dec. 5 using the LAMOST Medium-Resolution Spectrograph with exposures from 600 to 1200 seconds. These spectra show the irregular H α emission line profile variations (LPVs). In the seven spectra, from the 4th
Wu, Chao-Jian +10 more
openaire +2 more sources
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
The Second Case of a Major Merger Triggering a Starburst in a Green Pea Galaxy
The Astrophysical JournalWe have used the Karl G. Jansky Very Large Array (VLA) to map H i 21 cm emission from the Green Pea galaxy GP J1148+2546 at z ≈ 0.0451, only the second measurement of the H i spatial distribution of a Green Pea.
S. Purkayastha +6 more
doaj +1 more source
FEBS Letters, EarlyView.In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai +9 more
wiley +1 more source
High Resolution Spectroscopy of SN1987A's Rings: He I 10830 and H-alpha from the Hotspots
, 2007 We present the first high-dispersion spectroscopy of He I 10830 from the hotspots in the ring around SN1987A, obtained at Gemini South, spatially resolving the near and far sides of the ring. We compare these line profiles to similar echelle spectra of H$
Kurt Weiler +3 more
core +1 more source
Inner Warm Disk of ESO Hα 279a Revealed by NA i and CO Overtone Emission Lines [PDF]
The Astrophysical Journal, 2017 Abstract We present an analysis of near-infrared, high-resolution spectroscopy toward the flat-spectrum young stellar object (YSO) ESO Hα 279a (∼1.5M ⊙) in the Serpens star-forming region at a distance of 429 pc. Using the Immersion GRating INfrared Spectrometer (IGRINS; R ≈ 45,000), we detect emission lines originating
A-Ran Lyo +22 more
openaire +2 more sources
Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation
FEBS Letters, EarlyView.Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz +11 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesThe Generalized Needlet Internal Linear Combination (GNILC) method is a nonparametric component separation algorithm to remove the foreground contamination of the 21 cm intensity mapping data.
Wei-Ming Dai, Yin-Zhe Ma
doaj +1 more source
A Semiblind PCA-based Foreground Subtraction Method for 21 cm Intensity Mapping
The Astrophysical Journal, 2023 The principal component analysis (PCA) method and the singular value decomposition (SVD) method are widely used for foreground subtraction in 21 cm intensity mapping experiments.
Shifan Zuo, Xuelei Chen, Yi Mao
doaj +1 more source
Low-Ionization Emission Regions in Quasars: Gas Properties Probed with Broad O I and Ca II Lines
, 2007 We have compiled the emission-line fluxes of O I 8446, O I 11287, and the near-IR Ca II triplet (8579) observed in 11 quasars. These lines are considered to emerge from the same gas as do the Fe II lines in the low-ionized portion of the broad emission ...
K. Kawara +4 more
core +1 more source