Results 21 to 30 of about 534 (173)

ACTIVIVE PHENOMENA OBSERVED IN ATMOSPHERIC LINES OF THE HERBIG AE STAR HD163296

Odessa Astronomical Publications, 2008
We present new results of a high- resolution spectroscopic investigation of the young Ae Herbig star HD163296. Nineteen spectra of this object had been obtained on May 8 - 10, 2002 at the ESO with the FEROS high-resolution echelle spectrometer (R=48000 ...
M. A. Pogodin, M. M. Guimaraes, S. H.P. Alencar, W. J.B. Corradi, S. L.A. Vieira   +4 more
doaj   +1 more source

Design and Implementation of a Compact Echelle Spectrometer

DEStech Transactions on Engineering and Technology Research, 2018
As a special kind of spectrometers, echelle spectrometer features wide spectral range and full spectrum direct reading. However, the two-dimensional dispersion of the echelle grating usually leads to complex structure and aberration conditions, which impacts the resolution. In this work, a compact echelle spectrometer with wide detection range and high
XIAO FU, FA-JIE DUAN, YANG LI
openaire   +2 more sources

CHIRON – A new high resolution spectrometer for CTIO

EPJ Web of Conferences, 2011
Small telescopes can play an important role in the search for exoplanets because they offer an opportunity for high cadence observations that are not possible with large aperture telescopes.
Marcy G.W., Fischer D.A., Tokovinin A., Spronck J.F.P., Schwab C.   +4 more
doaj   +1 more source

CIRCUMSTELLAR ACTIVITY OF THE HERBIG AE STAR HD163296

Odessa Astronomical Publications, 2007
We present new results of a high-resolution spectroscopic investigation of the young Ae Herbig star HD163296. Nineteen spectra of this object had been obtained on May 8 - 10, 2002 at the ESO with the FEROS echelle spectrometer installed at the 1.52m ...
M. A. Pogodin, M. M. Guimaraes, S. H. P. Alencar, W. J. B. Corradi, S. L. A. Vieira   +4 more
doaj   +1 more source

Structured light illumination for order sorting in Echelle spectrometers

Optics Express, 2017
نبلغ عن تشغيل مطياف الدرجة تحت إضاءة ضوئية منظمة. يتم ترميز كل ترتيب حيود لمقياس الطيف ببنية دورية معينة تسمح بفرز الترتيب عن طريق التحليل العددي بعد الكشف. على النقيض من مقاييس طيف الدرجة المتقاطعة، تتداخل الطلبات في هذا النهج عند مستوى الكشف بحيث يمكن إجراء المعايرة الطيفية بسهولة بطول موجي مرجعي واحد.
Óscar Martínez-Matos, Pablo Vaveliuk, Carolina Rickenstorff-Parrao   +2 more
openaire   +3 more sources

High-resolution SOFIA/EXES Spectroscopy of Water Absorption Lines in the Massive Young Binary W3 IRS 5

The Astrophysical Journal, 2023
We present in this paper mid-infrared (5–8 μ m) spectroscopy toward the massive young binary W3 IRS 5, using the Echelon Cross Echelle Spectrograph (EXES) spectrometer in high-resolution mode ( R ∼ 50,000) from the NASA Stratospheric Observatory for ...
Jialu Li, Adwin Boogert, Andrew G. Barr, Curtis DeWitt, Maisie Rashman, David Neufeld, Nick Indriolo, Yvonne Pendleton, Edward Montiel, Matt Richter, J. E. Chiar, Alexander G. G. M. Tielens   +11 more
doaj   +1 more source

Sub-pixel Spectral Reduction Algorithm for Echelle Spectrometer [PDF]

, 2021
Abstract A sub-pixel spectral reduction algorithm for the echelle spectrometer is proposed here to ensure a high spectral resolution for it. The initial model is established by separating cross-dispersion and calculating the imaging offset from the center.
JIN YANG, Lu Yin, CI SUN, MINGJIA WANG, SHULONG FENG, NAN SONG   +5 more
openaire   +1 more source

Interactions of Sublimated Frost With Volcanic Plumes: Modeling Io's SO2 Atmosphere Using the DSMC Method

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract Io's tenuous atmosphere consists primarily of sulfur dioxide (SO2 ${\text{SO}}_{2}$) with observed column densities of approximately 1016−1017 $1{0}^{16}-1{0}^{17}$ cm−2 ${\text{cm}}^{-2}$. However, it remains uncertain whether the sublimation of SO2 ${\text{SO}}_{2}$ surface frost or volcanic outgassing is the primary source of the SO2 ...
Leander Schlarmann, Audrey Vorburger, Tim Mosimann, Nicolas Thomas, Peter Wurz   +4 more
wiley   +1 more source

The development of the Atmospheric Measurements by Ultra-Light Spectrometer (AMULSE) greenhouse gas profiling system and application for satellite retrieval validation [PDF]

Atmospheric Measurement Techniques, 2020
We report in this paper the development of an embedded ultralight spectrometer (<3 kg) based on tuneable diode laser absorption spectroscopy (with a sampling rate of 24 Hz) in the mid-infrared spectral region.
L. Joly, O. Coopmann, V. Guidard, T. Decarpenterie, N. Dumelié, J. Cousin, J. Burgalat, N. Chauvin, G. Albora, R. Maamary, Z. Miftah El Khair, D. Tzanos, J. Barrié, É. Moulin, P. Aressy, A. Belleudy   +15 more
doaj   +1 more source

Testing of an Echelle Spectrometer as a LIBS Detector at Sandia [PDF]

, 2001
Some useful information has been obtained regarding the potential use of the echelle spectrometer system for Laser-Induced Breakdown Spectroscopy (LIBS) monitoring applications, despite the AOTF-computer operational problems during the Sandia site-test.
Baldwin, David P., Zamzow, Daniel S., Ottesen, David K., Johnsen, Howard A.   +3 more
openaire   +2 more sources