Results 11 to 20 of about 1,279 (175)

A survey of SiO emission towards interstellar masers [PDF]

Astronomy and Astrophysics Supplement Series, 1998
We have conducted a survey of SiO emission to- wards galactic H2O and OH masers and ultracompact HII regions using the 15-m SEST and the 20-m Onsala tele- scope. With the SEST the transitions (v =0 ;J =2 1) and (v =0 ;J =3 2) of SiO at 3 and 2 mm were measured simultaneously. With Onsala only the (v =0 ;J =2 1) line was accessible.
J. Harju, K. Lehtinen, R. S. Booth, I. Zinchenko   +3 more
core   +3 more sources

New interstellar masers in nonmetastable ammonia

The Astrophysical Journal, 1986
The published version is located at http://adsabs.harvard.edu/full/1986ApJ...300L ...
MADDEN, SC, Irvine, William M., MATTHEWS, HE, BROWN, RD, GODFREY, PD   +4 more
core   +4 more sources

Magnetic Fields in Interstellar Masers [PDF]

Symposium - International Astronomical Union, 1990
Zeeman splitting in the spectra of molecular masers that arise in the envelopes of newly formed stars (called interstellar masers) offers a method of estimating the magnetic field in these dense regions (106–1011 cm−3). The magnetic field strengths in regions of OH and H2O masers scale as the square root of the density when compared to the density and ...
J. M. Moran
core   +3 more sources

Enhanced density and magnetic fields in interstellar OH masers [PDF]

Astronomy & Astrophysics, 2006
19 pages including online material, accepted to A& ...
Fish, Vincent L., Reid, Mark J., Menten, Karl M., Pillai, Thushara   +3 more
core   +5 more sources

ATLASGAL - Relationship between dense star forming clumps and interstellar masers [PDF]

, 2020
We have used catalogues from several Galactic plane surveys and dedicated observations toinvestigate the relationship between various maser species and Galactic star forming clumps, as identified by the ATLASGAL survey.
Kim, W. -J., Thompson, M. A., Breen, S.L., Thompson, M.A., Beuther, H, Moore, TJT, Ellingsen, S. P., Campbell-White, J, Urquhart, J., Beuther, H., Ellingsen, SP, Breen, SL, Moore, T., Leurini, S, Eden, D., Menten, KM, Leurini, Silvia, Campbell-White, J.; id_orcid, Urquhart, J. S., Billington, S., Moore, T.J.T, Urquhart, JS, Thompson, M., Moore, T. J. T., Menten, K.M., Ellingsen, S.P., Breen, S. L., König, C., Kim, W. J., Eden, D. J., Ellingsen, S., Eden, D.J, Urquhart, J.S., Campbell-White, J., Menten, K. M., Kim, W., König, C, Breen, S., Kim, W-J, Kim, W.-J., Thompson, MA, Leurini, S., Menten, K., Billington, SJ, Billington, S. J., Eden, DJ   +45 more
core   +4 more sources

13CH3OH Masers Associated With a Transient Phenomenon in a High-mass Young Stellar Object [PDF]

Astrophysical Journal, 2020
We report the first detection of isotopic methanol (13CH3OH) maser emission in interstellar space. The emission was detected toward the high-mass young stellar object G358.93-0.03 during monitoring of a flare in the 6.7 GHz methanol (CH3OH) maser ...
Chen, Xi, Ellingsen, Simon P., Kaczmarek, Jane F., Wang, J., Ellingsen, S. P., Ren, Z. -Y., Sobolev, Andrej M., Stecklum, B., Kaczmarek, J. F., Voronkov, M., Breen, Shari L., Zhang, Jiangshui, SANNA, ALBERTO, Brogan, Crystal, Hunter, T. R., Breen, S., Li, B., Burns, Ross A., Sobolev, A. M., Voronkov, M. A., Heever, SP van den, Shen, Zhi-Qiang, Hunter, Todd R., Ren, Z., Heever, S., Shen, Z. -Q., Sugiyama, Koichiro, Kaczmarek, J., Burns, R., Ren, Zhi-Yuan, Chen, X., Linz, H., Chibueze, James, Kim, K., MacLeod, Gordon C., Sobolev, A., Voronkov, Maxim A., Stecklum, Bringfried, Hunter, T., MacLeod, G., Kim, K. -T., Zhang, J., Brogan, C., Burns, R. A., Shen, Z., Linz, Hendrik, Sugiyama, K., Breen, S. L., Ellingsen, S., Hirota, T., MacLeod, G. C., Kim, Kee-Tae, Menten, Karl, Li, Bin, Wang, Jin, Menten, K., Sanna, A., Chibueze, J., Heever, S. P. V. D., Hirota, Tomoya   +59 more
core   +4 more sources

Methanol masers in NGC 253 with ALCHEMI [PDF]

Astronomy & Astrophysics, 2022
Context. Methanol masers of Class I (collisionally pumped) and Class II (radiatively pumped) have been studied in great detail in our Galaxy in a variety of astrophysical environments such as shocks and star-forming regions and are they are helpful to ...
K. Sakamoto, Henkel, C., Aladro, R., D. S. Meier, Tanaka, K, Tanaka, K., Henkel, Christian, S. Muller, Aalto, Susanne,, Mauersberger, R.,, Aalto, S, Humire, Pedro,, Muller, S., Harada, Nanase, Mühle, S, Mauersberger, R, Mauersberger, R., Martin, S.,, Rivilla, VM, Emig, KL, Meier, D.S., Huang, K., Aalto, S., Viti, Serena, Mangum, Jeffrey G., Menten, K.M., Tanaka, Kunihiko,, Sakamoto, K.,, van der Werf, P.,, Muhle, S.,, Menten, K. M., Nakanishi, K., Rivilla, Víctor M., Meier, David S., Harada, N., Emig, K. L., Menten, K.,, Emig, K., Yoshimura, Y., Sakamoto, K, Herrero-Illana, R, Yoshimura, Y.,, S. Aalto, Henkel, C.,, S. Viti, S. Martín, Mangum, J. G.,, K.-Y. Huang, Nakanishi, Kouichiro, Mangum, J, Humire, P. K., Huang, K. -Y., Aladro, Rebeca, Colzi, L., Tanaka, Kunihiko, Mühle, S., Emig, K.L., Caux, Emmanuel, Menten, KM, Muller, Sebastien, Nakanishi, Kouichiro,, P. P. van der Werf, Gorski, Mark,, Huang, K. Y., Colzi, Laura, Aladro, Rebeca,, R. Mauersberger, Meier, D., Hern\ue1ndez-G\uf3mez, A., Muller, Sebastien,, Menten, K., Humire, P.K., Werf, P.P. van der, Caux, E.,, Rivilla, V. M., Caux, E, Y. Yoshimura, Humire, PK, R. Herrero-Illana, Yoshimura, Y, van der Werf, P., N. Harada, Hernández-Gómez, Antonio, Aalto, Susanne, Werf, Paul van der, Herrero-Illana, Rubén, Herrero-Illana, R., Huang, K.Y., Huang, K-Y, Huang, Ko-Yun, Colzi, L, Hernández-Gómez, A, Caux, E., S. Mühle, P. K. Humire, Colzi, L.,, Huang, K. Y.,, van der Werf, P. P., van der Werf, PP, Humire, P., Aladro, R, M. Gorski, Meier, DS, Sakamoto, K., Henkel, C, J. Mangum, K. L. Emig, Emig, K.L.,, E. Caux, Nakanishi, K, Martin, S, Viti, S, K. M. Menten, Martín, Sergio, Rivilla, V\uedctor M., K. Nakanishi, Meier, D. S., Harada, N.,, Viti, S., R. Aladro, Rivilla, V.M., Hernández-Gómez, A., Gorski, Mark, Humire, Pedro, A. Hernández-Gómez, Muller, S, L. Colzi, Viti, Serena,, Gorski, M, V. M. Rivilla, Martín, S., Mangum, J. G., Emig, Kimberly L., Herrero-Illana, R.,, C. Henkel, Meier, D. S.,, Gorski, M., K. Tanaka, Rivilla, V., Rivilla, Víctor M.,, Harada, N, Mangum, J., Hernández-Gómez, A.,   +142 more
core   +3 more sources

Interstellar methanol masers [PDF]

Symposium - International Astronomical Union, 1993
The asymmetric rotor molecule methanol (CH3OH) has hundreds of transitions at centimeter-, millimeter-, and submillimeter wavelengths. Many of these are excited in the hot (T ≳ 150 K), dense (n ≳ 106 cm−3) molecular cloud cores surrounding newly formed massive stars or protostars.
Karl M. Menten
openaire   +2 more sources

The catalogues and mid-infrared environment of interstellar OH masers [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
23 pages (11 pages online only), 12 figures, Accepted.
Qiao, Haihua, Li, Juan, Shen, Zhiqiang, Chen, Xi, Zheng, Xingwu   +4 more
openaire   +4 more sources

Radiative Transport in Interstellar Masers

The Astrophysical Journal, 1973
d bandwidth of emission from OH and H/sub 2/O maser spheres that are expanding or contracting and that are homogeneously or inhomogenously pumped. Amplification of resonant acatter is shown to be less important than that of spontaneous emission in detemnining the small apparent interferometer sizes of emitters.
M. Litvak
openaire   +2 more sources