scholarly journals Retrieving the transmission spectrum of HD 209458b using CHOCOLATE: a new chromatic Doppler tomography technique

2021 ◽  
Author(s):  
E. Esparza-Borges ◽  
M. Oshagh ◽  
N. Casasayas-Barris ◽  
E. Palle ◽  
G. Chen ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Doppler Tomography

scholarly journals Retrieving the transmission spectrum of HD 209458b usingCHOCOLATE: a new Chromatic Doppler Tomography technique

2021 ◽  
Author(s):  
Emma Esparza-Borges ◽  
Mahmoud Oshagh ◽  
Nuria Casasayas-Barris ◽  
Enric Pallé
Keyword(s):  
Chemical Composition ◽  
Observational Data ◽  
Transmission Spectrum ◽  
Transmission Spectra ◽  
Low Resolution ◽  
Doppler Tomography ◽  
Alternative Approach ◽  
Good Agreement ◽  
Multi Band ◽  
Hot Jupiter

<p>Multi-band photometric transit observations or low resolution spectroscopy (spectro-photometry) are normally used to retrieve the broadband transmission spectra of transiting exoplanets in order to assess the chemical composition of their atmospheres. In this work, we present an alternative approach for recovering the broadband transmission spectra using chromatic Doppler Tomography. To validate the method and examine its performance, we used new observational data obtained with the ESPRESSO instruments to retrieve the  transmission spectra of the archetypal hot Jupiter HD209458b. Our findings indicate that the recovered transmission spectrum is in good agreement with the results presented in previous studies, which used different methodologies to extract the spectrum.</p>

Ion Heating Characteristics of Merging Spherical Tokamak Plasmas using the Improved Doppler Tomography Spectroscopy System

2014 ◽  
Vol 134 (9) ◽  
pp. 523-524
Author(s):  
Hideya Koike ◽  
Masanobu Annoura ◽  
Kento Nishida ◽  
Hiroshi Tanabe ◽  
Michiaki Inomoto ◽  
...  
Keyword(s):  
Spherical Tokamak ◽  
Tokamak Plasmas ◽  
Ion Heating ◽  
Doppler Tomography ◽  
Spectroscopy System

YMgB5O10 crystal preparation and attractive multi-wavelength emission characteristics of doping Nd3+ ions

2021 ◽  
Author(s):  
Shijia Sun ◽  
Qi Wei ◽  
Bing-Xuan Li ◽  
Xingjun Shi ◽  
feifei yuan ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Transmission Spectrum ◽  
Systematic Investigation ◽  
Solution Growth ◽  
Emission Characteristics ◽  
Multi Wavelength ◽  
Growth Method ◽  
Wavelength Emission ◽  
Spectrum Band ◽  
Top Seeded Solution Growth

The pure and Nd3+-doped YMgB5O10 (YMB, Nd:YMB) crystals were grown successfully by the top-seeded solution growth method with composite fluxes Li2O-B2O3-LiF. The systematic investigation of crystal structure, transmission spectrum, band...

Optimizing operating parameters of spectrophotometer for testing transmission spectrum of optical substrate

2010 ◽  
Author(s):  
Huasong Liu ◽  
Dandan Liu ◽  
Yiqin Ji ◽  
Zhanshan Wang ◽  
Deying Chen ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Operating Parameters

scholarly journals Doppler Tomography in 2D and 3D of the X-ray Binary Cyg X-1 for June 2007

2011 ◽  
Vol 7 (S282) ◽  
pp. 201-202 ◽  
Author(s):  
O. I. Sharova ◽  
M. I. Agafonov ◽  
E. A. Karitskaya ◽  
N. G. Bochkarev ◽  
S. V. Zharikov ◽  
...  
Keyword(s):  
Binary System ◽  
Spectral Data ◽  
Inclination Angle ◽  
Tomographic Reconstruction ◽  
Orbital Plane ◽  
National Observatory ◽  
Doppler Tomography ◽  
X Ray ◽  
2D And 3D ◽  
First Time

AbstractThe 2D and 3D Doppler tomograms of X-ray binary system Cyg X-1 (V1357 Cyg) were reconstructed from spectral data for the line HeII 4686Å obtained with 2-m telescope of the Peak Terskol Observatory (Russia) and 2.1-m telescope of the Mexican National Observatory in June, 2007. Information about gas motions outside the orbital plane, using all of the three velocity components Vx, Vy, Vz, was obtained for the first time. The tomographic reconstruction was carried out for the system inclination angle of 45°. The equal resolution (50 × 50 × 50 km/s) is realized in this case, in the orbital plane (Vx, Vy) and also in the perpendicular direction Vz. The checkout tomograms were realized also for the inclination angle of 40° because of the angle uncertainty. Two versions of the result showed no qualitative discrepancy. Details of the structures revealed by the 3D Doppler tomogram were analyzed.

scholarly journals A NEW APPROACH TO ANALYZINGHSTSPATIAL SCANS: THE TRANSMISSION SPECTRUM OF HD 209458 b

2016 ◽  
Vol 832 (2) ◽  
pp. 202 ◽  
Author(s):  
A. Tsiaras ◽  
I. P. Waldmann ◽  
M. Rocchetto ◽  
R. Varley ◽  
G. Morello ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
New Approach

scholarly journals Hemoglobin contrast in magnetomotive optical Doppler tomography

2006 ◽  
Vol 31 (6) ◽  
pp. 778 ◽  
Author(s):  
Jeehyun Kim ◽  
Junghwan Oh ◽  
Thomas E. Milner ◽  
J. Stuart Nelson
Keyword(s):  
Doppler Tomography ◽  
Optical Doppler Tomography

Coherent Doppler tomography for microwave imaging

1983 ◽  
Vol 71 (2) ◽  
pp. 254-261 ◽  
Author(s):  
D.L. Mensa ◽  
S. Halevy ◽  
G. Wade
Keyword(s):  
Microwave Imaging ◽  
Doppler Tomography
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