Results 81 to 90 of about 4,855 (170)

Survey of S-type AGB Stars Using the KVN Four-band Receiving System: SMASTES II

The Astronomical Journal
We present the observational results of Simultaneous Multi-mAser Survey Toward Evolved Stars (SMASTES) II for 150 S-type asymptotic giant branch stars. Observations have been performed from 2023 September to 2024 March using the upgraded wide four-band ...
Seong-Min Son, Se-Hyung Cho, Jaeheon Kim, Hyeon Baek, Dong-Hwan Yoon, Kyung-Won Suh   +5 more
doaj   +1 more source

Inner Workings: Astronomers are redrawing our corner of the Milky Way. [PDF]

Proc Natl Acad Sci U S A, 2021
Croswell K.
europepmc   +1 more source

Periodic 6.7 GHz CH3OH Maser Emission in G353.273+0.641: First Candidate for a Pulsating High-mass Protostar

The Astrophysical Journal
We report on the periodic flux variations in the 6.7 GHz CH _3 OH maser associated with the high-mass protostar G353.273+0.641, based on 13 yr of monitoring mainly by the Hitachi 32 m telescope.
Sohta Harajiri, Kazuhito Motogi, Ryota Nakamura, Yoshinori Yonekura, Yoshihiro Tanabe, Kenta Fujisawa   +5 more
doaj   +1 more source

Survey of Oxygen-rich AGB Stars Using the KVN 4 Receiving Bands—SMASTES. I.

The Astronomical Journal
Simultaneous observations of 19 H _2 O and SiO maser and thermal lines were performed toward 155 M-type oxygen-rich (O-rich) AGB stars. We used the upgraded four-band (22/43/86/129 GHz) wide receiving system of the Korean VLBI Network (KVN).
Hyeon Baek, Se-Hyung Cho, Jaeheon Kim, Seung-Min Son, Dong-Hwan Yoon, Kyung-Won Suh   +5 more
doaj   +1 more source

The OH 1612MHz maser pump rates of stellar, interstellar and post-AGB OH masers [PDF]

New Astronomy, 2005
(Pseudo) radiative pumprate of OH 1612 MHz masers is defined for a sample of 44 OH/IR sources (infrared sources with OH 1612 MHz maser), irrespective of the real maser pumping mechanisms. The correlation between the (pseudo) maser pumprates and the evolutionary status of the maser sources reveals that the radiative pumprates of stellar OH masers are ...
openaire   +2 more sources

Cumulene carbenes in TMC-1: Astronomical discovery of <i>l</i>-H₂C₅ ^★. [PDF]

Astron Astrophys, 2021
Cabezas C, Tercero B, Agúndez M, Marcelino N, Pardo JR, de Vicente P, Cernicharo J.   +6 more
europepmc   +1 more source

Discovering the sky at the longest wavelengths with a lunar orbit array. [PDF]

Philos Trans A Math Phys Eng Sci, 2021
Chen X, Yan J, Deng L, Wu F, Wu L, Xu Y, Zhou L.   +6 more
europepmc   +1 more source

Interstellar nitrile anions: Detection of C₃N^- and C₅N^- in TMC-1^. [PDF]

Astron Astrophys, 2020
Cernicharo J, Marcelino N, Pardo JR, Agúndez M, Tercero B, de Vicente P, Cabezas C, Bermúdez C.   +7 more
europepmc   +1 more source

Cloud-cloud collision as drivers of the chemical complexity in Galactic Centre molecular clouds. [PDF]

Mon Not R Astron Soc, 2020
Zeng S, Zhang Q, Jiménez-Serra I, Tercero B, Lu X, Martín-Pintado J, de Vicente P, Rivilla VM, Li S.   +8 more
europepmc   +1 more source

New molecular species at redshift <i>z</i> = 0.89. [PDF]

Astron Astrophys, 2020
Tercero B, Cernicharo J, Cuadrado S, de Vicente P, Guélin M.   +4 more
europepmc   +1 more source