Results 11 to 20 of about 2,068 (188)

Ultraviolet spectropolarimetry with polstar: interstellar medium science

, 2023
Continuum polarization over the UV-to-microwave range is due to dichroic extinction (or emission) by asymmetric, aligned dust grains. Scattering can also be an important source of polarization, especially at short wavelengths.
al., et, Andersson, B. -G.
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Communication: Vacuum ultraviolet photoabsorption of interstellar icy thiols [PDF]

, 2014
Following the recent identification of ethanethiol in the interstellar medium (ISM) we have carried out Vacuum UltraViolet (VUV) spectroscopy studies of ethanethiol (CH3CH2SH) from 10 K until sublimation in an ultrahigh vacuum chamber simulating ...
Lo, Jen-Iu, Bhalamurugan Sivaraman, Pradeep, T., B. N. Raja Sekhar, Bhuin, Radha Gobinda, Mason, Nigel, Sekhar, B.N.R., Nigel John Mason, Jen-Iu Lo, Bing-Ming Cheng, Bhuin, R.G., Cheng, B.-M., Thalappil Pradeep, Cheng, Bing-Ming, Pradeep, Thalappil, Sekhar, B. N. Raja, Radha Gobinda Bhuin, Sivaraman, Bhalamurugan, Sivaraman, B., Lo, J.-I., Mason, Nigel John   +20 more
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The effect of ISM absorption on stellar activity measurements and its relevance for exoplanet studies [PDF]

, 2017
Past ultraviolet and optical observations of stars hosting close-in Jupiter-mass planets have shown that some of these stars present an anomalously low chromospheric activity, significantly below the basal level.
L. Fossati, K. France, Staab, D., Jenkins, J. S., Fossati, L., France, K., A. Youngblood, T. Koskinen, Ingrassia, S., Jenkins, James Stewart, C. A. Haswell, S. Ingrassia, A. F. Lanza, S. Redfield, P. E. Cubillos, G. Pelzmann, LANZA, Antonino Francesco, J. S. Jenkins, Haswell, C. A., Koskinen, T., Marcelja, S. E., Youngblood, A., Cubillos, P. E., Pelzmann, G., D. Staab, S. E. Marcelja, Lanza, A. F., Redfield, S.   +27 more
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The ISM properties of Lyman Continuum Emitters

, 2022
The contribution of star-forming galaxies to Reionization is still unknown. Using 66 ultraviolet (UV) spectra from the recent Low-Redshift Lyman Continuum Survey (LzLCS) and 23 archival Lyman Continuum (LyC) observations, we form a statistical sample of ...
Saldana-Lopez, Alberto, Flury, Sophia R., Schaerer, Daniel, Chisholm, John, Jaskot, Anne E.   +4 more
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Impact of MgII interstellar medium absorption on near-ultraviolet exoplanet transit measurements

, 2022
Ultraviolet (UV) transmission spectroscopy probes atmospheric escape, which has a significant impact on planetary atmospheric evolution. If unaccounted for, interstellar medium absorption (ISM) at the position of specific UV lines might bias transit ...
Fossati, L., France, K., Sreejith, A. G., Cubillos, P. E., Ambily, S.   +4 more
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The ALPINE-ALMA [C ii] survey: Investigation of 10 galaxies at z ∼ 4.5 with [O ii] and [C ii] line emission − ISM properties and [O ii]−SFR relation [PDF]

, 2022
International audienceWe present 10 main-sequence ALPINE galaxies (log (M/M_⊙) = 9.2−11.1 and SFR=23−190M⊙yr−1⁠) at z ∼ 4.5 with optical [O ii] measurements from Keck/MOSFIRE spectroscopy and Subaru/MOIRCS narrow-band imaging.
Romano, Michael, Faisst, A.L., Boquien, M., Silverman, J., Jones, G.C., Capak, Peter, M Dessauges-Zavadsky, Kartaltepe, J., Zamorani, Giovanni, Romano, M., A M Koekemoer, Dessauges-Zavadsky, M., Vanderhoof, Brittany, Fudamoto, Yoshi, Narayanan, Desika, Y Fudamoto, J Silverman, Ginolfi, M., Hathi, N.P., Fèvre, O. Le, Gal, R., M B??thermin, L Shen, G Zamorani, Lubin, L. M., N P Hathi, Jones, Gareth C., Zamorani, G., Yan, L., Faisst, A. L., Shen, L., Le Fevre, J. P., Talia, M., Béthermin, M., J Kartaltepe, Silverman, Jules, Cassata, Paolo, Capak, P.L., M Bethermin, M Ginolfi, Hathi, Nimish, Schaerer, D., Dessauges-Zavadsky, Miroslava, Fudamoto, Y., Kartaltepe, Jeyhan S., Brittany N Vanderhoof, Lemaux, Brian C., D Schaerer, D Vergani, Narayanan, D., D Narayanan, Lemaux, B.C., L Yan, B C Lemaux, Koekemoer, Anton M., Vanderhoof, Brittany N., Vergani, D., M Romano, O Le Fevre, L M Lubin, M Boquien, P L Capak, G C Jones, Ginolfi, Michele, M Talia, Cassata, P., Koekemoer, A.M., A L Faisst, R Gal, Lubin, L.M., P Cassata, Vergani, Debora, O Le??F??vre   +72 more
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UV Capabilities to Probe the Formation of Planetary Systems: From the ISM to Planets [PDF]

, 2006
Planetary systems are angular momentum reservoirs generated during star formation. Solutions to three of the most important problems in contemporary astrophysics are needed to understand the entire process of planetary system formation: The physics of ...
Gomez de Castro, Ana, Gómez De Castro, Ana Inés, de Avillez, Miguel, Linsky, Jeffrey, D'Avillez, Miguel, Lecavelier, Alain, Cernicharo, Jose, Linsky, Jeff   +7 more
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Vacuum ultraviolet and infrared spectra of condensed methyl acetate on cold astrochemical dust analogs [PDF]

, 2013
Following the recent report of the first identification of methyl acetate (CH3COOCH3) in the interstellar medium (ISM) we have carried out Vacuum UltraViolet (VUV) and InfraRed (IR) spectroscopy studies on methyl acetate from 10 K until sublimation in an
Prabhudesai, V., Nair, B.G., Kundu, S., Mason, Nigel, Raja Sekhar, B.N., Krishnakumar, E., Cheng, B.-M., Nair, B. G., Davis, D., Raja Sekhar, B. N., Sivaraman, B., Mason, N. J., Cheng, B. -M., Lo, J.-I., Lo, J. -I.   +14 more
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Modelling ultraviolet-line diagnostics of stars, the ionized and the neutral interstellar medium in star-forming galaxies

, 2017
We combine state-of-the-art models for the production of stellar radiation and its transfer through the interstellar medium (ISM) to investigate ultraviolet-line diagnostics of stars, the ionized and the neutral ISM in star-forming galaxies.
Bruzual, G., S. Charlot, A. Vidal-García, I. Hubeny, Charlot, S., Hubeny, I., Vidal-García, A., G. Bruzual   +7 more
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The Wind‐ISM Interaction of α Tauri

, 2007
Ultraviolet spectra of α Tau (K5 III) obtained by the Hubble Space Telescope (HST) show many emission lines affected by broad absorption from the strong wind of this red giant star. For the Mg II h and k lines there is also a narrow absorption feature in
Harper, Graham M, Wood, Brian E, Heerikhuisen, Jacob, Muller, Hans-Reinhard, Zank, Gary P   +4 more
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