Results 81 to 90 of about 301,064 (245)

Photoelectron Spectroscopy of the Phosphorus Monosulfide (PS) and Phosphorus Monoxide (PO) Radicals

Small Structures, Volume 7, Issue 1, January 2026.
Sketch of the experiment to measure the photo electron spectrum of the PS radical produced in situ with a mixture of PH3, H2S and F atoms. PO and PS radicals are the smallest units of phosphorus oxides and phosphorus sulfides, respectively, two rich families of refractory compounds widely employed in industrial and technological applications. These two
Pedro Recio, Jorge Alonso de la Fuente, Myriam Drissi, Niyazi Bulut, Jean Christophe Loison, Gustavo Garcia, Susana Gomez Carrasco, Cristina Sanz Sanz, Luis Bañares, Sonia Marggi Poullain, Alexandre Zanchet   +10 more
wiley   +1 more source

Equatorial Enhancement in the Dustiest OH/IR Stars in the Galactic Bulge

The Astrophysical Journal
We have detected the 10 μ m silicate feature and the 11.3 μ m crystalline forsterite feature in absorption in 21 oxygen-rich asymptotic giant branch stars in the Galactic bulge.
Steven R. Goldman, Jacco Th. van Loon, Olivia C. Jones, Joris A. D. L. Blommaert, Martin A. T. Groenewegen   +4 more
doaj   +1 more source

Tracing the envelopes around embedded low-mass young stellar objects with HCO+ and millimeter-continuum observations [PDF]

, 1997
Interferometer observations of millimeter-continuum (OVRO) and single-dish observations of HCO+ and H13CO+ J=1-0, 3-2, and 4-3 (JCMT, IRAM 30m) are presented of nine embedded low-mass young stellar objects (YSOs) in Taurus.
Bernes C., Bertout C., Bontemps S., Dutrey A., Dutrey A., Ewine F. van Dishoeck, Geoffrey A. Blake, Huib Jan van Langevelde, Leinert C., Looney L. W., Michiel R. Hogerheijde, Millar T. J., Monteiro T. S., Ossenkopf V., Saraceno P., Ward-Thompson D.   +15 more
core   +4 more sources

The circumstellar envelopes of the Cepheids $\mathsf{\ell}$ Carinae and RS Puppis - Comparative study in the infrared with Spitzer, VLT/VISIR, and VLTI/MIDI [PDF]

, 2009
Context. Compact circumstellar envelopes (CSEs) have been detected around several Cepheids by interferometry. In particular, ob- servations with the VINCI instrument revealed in 2006 a compact envelope around the long period CepheidCar (P = 35.
P. Kervella, A. M'erand, A. Gallenne
semanticscholar   +1 more source

Satellites and Small Bodies With ALMA: Insights Into Solar System Formation and Evolution

AGU Advances, Volume 6, Issue 6, December 2025.
Abstract Our understanding of the formation and evolution of planetary systems has made major advances in the past decade. This progress has been driven in large part by the Atacama Large Millimeter/submillimeter Array (ALMA), which has given us an unprecedented view of solar system bodies themselves, and of the structure and chemistry of forming ...
Katherine de Kleer, Michael E. Brown, Martin Cordiner, Richard Teague   +3 more
wiley   +1 more source

ALMA’s Acute View of pPNe: Through the Magnifying Glass... and What We Found There

Galaxies, 2018
We present recent Atacama Large Millimeter/submillimeter Array (ALMA)-based studies of circumstellar envelopes (CSEs) around Asymptotic Giant Branch (AGB) stars and pre-Planetary Nebulae (pPNe).
Carmen Sánchez Contreras, Javier Alcolea, Valentín Bujarrabal, Arancha Castro-Carrizo   +3 more
doaj   +1 more source

A Molecular Line Survey of the Highly Evolved Carbon Star CIT 6 [PDF]

, 2008
We present a spectral line survey of the C-rich envelope CIT 6 in the 2mm and 1.3mm bands carried out with the Arizona Radio Observatory (ARO) 12m telescope and the Heinrich Hertz Submillimeter Telescope (SMT). The observations cover the frequency ranges
Agúndez, Alksnis, Bachiller, Balser, Bieging, Boothroyd, Bujarrabal, Busso, Cernicharo, Charbonnel, Charbonnel, Dinh-V-Trung, , Frost, Groenewegen, He, Henkel, Herpin, Kahane, Keene, Lindqvist, Lodders, Lucas, Monnier, Nejad, Nummelin, Olofsson, Pardo, Sackmann, Schmidt, Schöier, Sopka, Sun Kwok, Willacy, Yong Zhang   +33 more
core   +2 more sources

JWST Imaging of the Closest Globular Clusters—VI. The Lowest‐Mass Objects in M 4 and the Galactic Bulge

Astronomische Nachrichten, Volume 346, Issue 9, November 2025.
ABSTRACT We present James Webb Space Telescope observations of M 4—the closest globular cluster—that probe the lower Main Sequence down to the hydrogen‐burning limit. The unveiled stellar sequence reaches much fainter luminosities than previously possible, revealing a few extremely red objects that are consistent with brown dwarfs as cool as Teff∼1000K$
L. R. Bedin, R. Gerasimov, A. Calamida, M. Libralato, M. Scalco, D. Nardiello, M. Griggio, D. Apai, J. Anderson, A. Bellini, A. Burgasser   +10 more
wiley   +1 more source

A Search for Asymmetric Kinematic Components in Circumstellar Envelopes Using OH Main Line Masers

The Astrophysical Journal
Circumstellar OH maser lines are useful for studying the dynamics of the circumstellar envelope (CSE) around evolved stars. This study aims to identify CSEs around cold stars, which exhibit deviations from the spherical expansion, by comparing the ...
Jia-Yong Xie, Jun-ichi Nakashima, Yong Zhang   +2 more
doaj   +1 more source

Modelling of intermediate-age stellar populations: III Effects of dust-shells around AGB stars [PDF]

, 2002
In this paper,we present single stellar population models of intermediate age stellar populations where dust-enshrouded AGB stars are introduced. The formation of carbon stars is also accounted for, and is taken to be a function of both initial mass and ...
Aaronson, Bedijn, Bessell, Blöcker, Boothroyd, Bressan, Cioni, Costa, Ferraro, Forestini, Frogel, Frost, Groenewegen, Habing, Habing, Herwig, Herwig, Ivezic, Jones, Jura, Justtanont, Kontizas, Lançon, Le Bertre, Le Bertre, Le Bertre, Le Sidaner, Loidl, M. Mouhcine, Marigo, Marigo, Marigo, Martin, Mouhcine, Nikolaev, Olivier, Omont, Persson, Rebeirot, Rouleau, Rowan-Robinson, Rowan-Robinson, Schutte, van Loon, Volk, Wagenhuber, Whitelock, Whitelock, Zaritsky, Zijlstra   +49 more
core   +2 more sources