Results 11 to 20 of about 180,242 (261)

JWST-TST DREAMS: Quartz Clouds in the Atmosphere of WASP-17b

open access: yesThe Astrophysical Journal Letters, 2023
Clouds are prevalent in many of the exoplanet atmospheres that have been observed to date. For transiting exoplanets, we know if clouds are present because they mute spectral features and cause wavelength-dependent scattering. While the exact composition
David Grant   +41 more
doaj   +1 more source

Constraining Exoplanet Mass from Transmission Spectroscopy [PDF]

open access: yesScience, 2013
Weighing Up Exoplanets The mass of a planet is important to know, but it is difficult to determine for an exoplanet. If a transmission spectrum of an exoplanet is available, de Wit and Seager (p. 1473 ) show that it is possible to determine its mass based on the properties of its ...
de Wit, Julien, Seager, Sara
openaire   +4 more sources

Detection of Healthcare-Related Extended-Spectrum Beta-Lactamase-Producing Escherichia coli Transmission Events Using Combined Genetic and Phenotypic Epidemiology. [PDF]

open access: yesPLoS ONE, 2016
Since the year 2000 there has been a sharp increase in the prevalence of healthcare-related infections caused by extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli. However, the high community prevalence of ESBL-producing E. coli isolates
Anne F Voor In 't Holt   +6 more
doaj   +1 more source

High-contrast Doppler-free transmission spectroscopy [PDF]

open access: yesOptics Letters, 1986
By applying Doppler-free saturated absorption spectroscopy in the regime of high integrated sample absorption, high-contrast Doppler-free laser transmission signals can be obtained as demonstrated in experiments on the sodium D lines. Natural linewidth background-free signals are observed.
Svanberg, Sune   +3 more
openaire   +3 more sources

Violet phosphorus transmission and photoconductance spectroscopy

open access: yesNanotechnology, 2023
Abstract Violet phosphorus is a semiconducting allotrope of phosphorus with a layered crystalline structure consisting of orthogonally oriented layers of phosphorus chains composed of P2[P8]P2[P9] repeating units. Here, we report optical transmission spectroscopy and photoconductivity measurements of exfoliated flakes of violet ...
Bo Zhang   +4 more
openaire   +3 more sources

HORuS transmission spectroscopy of 55 Cnc e [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT The High Optical Resolution Spectrograph (HORuS) is a new high-resolution echelle spectrograph available on the 10.4-m Gran Telescopio Canarias (GTC). We report on the first HORuS observations of a transit of the super-Earth planet 55 Cnc e.
H M Tabernero   +18 more
openaire   +4 more sources

ExoGemS High-resolution Transmission Spectroscopy of WASP-76b with GRACES

open access: yesThe Astronomical Journal, 2023
We present high-resolution transmission spectroscopy of WASP-76b with Gemini Remote Access to CFHT ESPaDOnS Spectrograph (GRACES)/Gemini North obtained as part of the ExoGemS survey.
Emily K. Deibert   +11 more
doaj   +1 more source

Size Determination of Polystyrene Sub-Microspheres Using Transmission Spectroscopy

open access: yesApplied Sciences, 2020
Nano/micro polystyrene (PS) beads have found many applications in different fields spanning from drug delivery, bio-diagnostics, and hybrid plasmonics to advanced photonics.
Tien Van Nguyen   +8 more
doaj   +1 more source

ExoGemS Detection of a Metal Hydride in an Exoplanet Atmosphere at High Spectral Resolution

open access: yesThe Astrophysical Journal Letters, 2023
Exoplanet atmosphere studies are often enriched by synergies with brown dwarf analogs. However, many key molecules commonly seen in brown dwarfs have yet to be confirmed in exoplanet atmospheres.
Laura Flagg   +9 more
doaj   +1 more source

Quantitative and rapid DNA detection by laser transmission spectroscopy. [PDF]

open access: yesPLoS ONE, 2011
Laser transmission spectroscopy (LTS) is a quantitative and rapid in vitro technique for measuring the size, shape, and number of nanoparticles in suspension.
Frank Li   +8 more
doaj   +1 more source

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