Results 31 to 40 of about 198,420 (284)

Line emission from circumstellar disks around A stars [PDF]

, 2002
The nature of the tenuous disks around A stars has raised considerable controversy in the literature during the past decade. The debate whether or not the disk around beta Pictoris contains gaseous molecular hydrogen is only the most recent example ...
Augereau, Barrado y Navascués, Cheng, Chini, Chini, Chu, Deleuil, Dent, Dent, Dutrey, E. F. van Dishoeck, Flower, Freudling, G.-J. van Zadelhoff, Habing, Habing, Heap, Hogerheijde, Holland, I. Kamp, Jolly, Kamp, Kamp, Keenan, Kurucz, Launay, Lecavelier des Etangs, Li, Liseau, Liseau, Mendoza, Olofsson, R. Stark, Roberge, Savoldini, Schinke, Schröder, Stauffer, Swinyard, Thi, Thi, Yamashita, Zuckerman   +42 more
core   +3 more sources

A Catalog of 45,206 Hα Emission-line Stars from LAMOST MRS DR7

The Astrophysical Journal Supplement Series
Stars that exhibit prominent emission lines in their spectra are referred to as emission-line stars, encompassing a wide range of stellar types and indicative of intriguing physical properties.
Lihuan Yu, Jiangdan Li, Jinliang Wang, Tongyu He, Zhanwen Han   +4 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

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, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

A near-infrared survey for Galactic Wolf-Rayet stars

, 2002
Initial results, techniques, and rationale for a near-infrared survey of evolved emission-line stars toward the Galactic Center are presented. We use images taken through narrow-band emission-line and continuum filters to select candidates for ...
Blum, R., Conti, P., Damineli, A., Homeier, N., Pasquali, A.   +4 more
core   +2 more sources

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

FEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson, Mackenzie K Herroon, Shane Mecca, Laimar C Garmo, Jacob Lindquist, Shrila Rajendran, Steve M. Patrick, Izabela Podgorski   +7 more
wiley   +1 more source

A Catalog of Hα Emission-line Stars and 785 Newly Identified Young Stellar Object Candidates from LAMOST Based on a Deep Learning Method

The Astrophysical Journal Supplement Series
The H α emission line commonly appears in the spectra of many stars and serves as a key indicator for tracing ionized interstellar gas, investigating stellar activity, and studying gas dynamics.
Lei Tan, Ying Mei, Jiale Qian, Xiaolong Wang, Yue Cui, Aixin Huang, Feng Wang, Hui Deng, Chao Liu, Huanbin Chi   +9 more
doaj   +1 more source

Investigation of the Nature of the B[e] Star CI Cam in the Optical Range

Galaxies
The B[e] phenomenon is observed in a wide range of stars at various evolutionary stages. Its nature remains uncertain. The B[e] phenomenon is defined as the simultaneous presence of low-excitation forbidden line emission and strong infrared excess in the
Elena A. Barsukova, Vitaly P. Goranskij, Aleksandr N. Burenkov, Ilya A. Yakunin   +3 more
doaj   +1 more source

Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope

The Astronomical Journal, 2023
We report on observations of the extended environment of the bright Be star γ -Cas performed using intensity interferometry measurements within its H α emission line.
Nolan Matthews, Jean-Pierre Rivet, David Vernet, Mathilde Hugbart, Guillaume Labeyrie, Robin Kaiser, Julien Chabé, Clément Courde, Olivier Lai, Farrokh Vakili, Olivier Garde, William Guerin   +11 more
doaj   +1 more source

New Models for Wolf-Rayet and O Star Populations in Young Starbursts [PDF]

, 1997
Using the latest stellar evolution models, theoretical stellar spectra, and a compilation of observed emission line strengths from Wolf-Rayet (WR) stars, we construct evolutionary synthesis models for young starbursts.
Allen S. W., Arnault Ph., Braun H., Cervino M., Contini T., Copetti M. V. F., Daniel Schaerer, de Loore C., Diaz A. I., Doherty R. M., Eenens P. R. J., Esteban C., Garcia-Vargas M., Garmany C. D., Hamann W. R., Kingsburgh R. L., Kingsburgh R. L., Koesterke L., Kruger H., Kunth D., Lundstrom I., Maeder A., Maeder A., Maeder A., Maeder A., Maeder A., Mas-Hesse J. M., Meynet G., Meynet G., Moffat A. F. J., Olofsson K., Pagel B. E. J., Schaerer D., Schaerer D., Schaerer D., Schaerer D., Schaller G., Seaton M. J., Smith L. F., Smith L. F., Stasinska G., Terlevich E., Vanbeveren D., Vanbeveren D., William D. Vacca   +44 more
core   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

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, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source