Very High Resolution Spectroscopy

1976 ◽  
Vol 23 (10) ◽  
pp. 849-849
Author(s):  
D.W. Goodwin
Keyword(s):  
High Resolution ◽  
High Resolution Spectroscopy ◽  
Very High

scholarly journals The Voyage of Metals in the Universe from Cosmological to Planetary Scales: the need for a Very High-Resolution, High Throughput Soft X-ray Spectrometer

2021 ◽  
Author(s):  
F. Nicastro ◽  
J. Kaastra ◽  
C. Argiroffi ◽  
E. Behar ◽  
S. Bianchi ◽  
...  
Keyword(s):  
Chemical Composition ◽  
High Resolution ◽  
Deep Understanding ◽  
High Resolution Spectroscopy ◽  
X Ray ◽  
Viable Solution ◽  
Surrounding Space ◽  
Nuclear Processes ◽  
The Universe ◽  
Very High

AbstractMetals form an essential part of the Universe at all scales. Without metals we would not exist, and the Universe would look completely different. Metals are primarily produced via nuclear processes in stars, and spread out through winds or explosions, which pollute the surrounding space. The wanderings of metals in-and-out of astronomical objects are crucial in determining their own evolution and thus that of the Universe as a whole. Detecting metals and assessing their relative and absolute abundances and energetics can thus be used to trace the evolution of these cosmic components. The scope of this paper is to highlight the most important open astrophysical problems that will be central in the next decades and for which a deep understanding of the Universe’s wandering metals, their physical and kinematical states, and their chemical composition represents the only viable solution. The majority of these studies can only be efficiently performed through High Resolution Spectroscopy in the soft X-ray band.

scholarly journals Very high-resolution spectroscopy for extremely large telescopes using pupil slicing and adaptive optics

2007 ◽  
Vol 15 (5) ◽  
pp. 1983 ◽  
Author(s):  
Jacques M. Beckers ◽  
Torben E. Andersen ◽  
Mette Owner-Petersen
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
High Resolution Spectroscopy ◽  
Large Telescopes ◽  
Very High

Very high-resolution spectroscopy: the ESPRESSO optical design

2012 ◽  
Author(s):  
P. Spanò ◽  
B. Delabre ◽  
H. Dekker ◽  
F. Pepe ◽  
F. M. Zerbi ◽  
...  
Keyword(s):  
High Resolution ◽  
Optical Design ◽  
High Resolution Spectroscopy ◽  
Very High

scholarly journals Very-high-resolution spectroscopy of interstellar Na I

1980 ◽  
Vol 193 (4) ◽  
pp. 849-866 ◽  
Author(s):  
J. C. Blades ◽  
I. Wynne-Jones ◽  
R. C. Wayte
Keyword(s):  
High Resolution ◽  
High Resolution Spectroscopy ◽  
Very High

High angular-resolution infrared imaging and spectra of the carbon-rich AGB star V Hya

2018 ◽  
Vol 14 (S343) ◽  
pp. 495-497
Author(s):  
Raghvendra Sahai ◽  
Jayadev Rajagopal ◽  
Kenneth Hinkle ◽  
Richard Joyce ◽  
Mark Morris
Keyword(s):  
High Resolution ◽  
High Velocity ◽  
Infrared Imaging ◽  
High Resolution Spectroscopy ◽  
High Angular Resolution ◽  
Radial Temperature ◽  
Vibration Rotation ◽  
Absorption Features ◽  
Very High ◽  
The Phoenix

AbstractThe carbon-rich AGB star V Hya is believed to be in the very brief transition phase between the AGB and a planetary nebula (PN). Using HST/STIS, we previously found a high-velocity (> 200 kms−1) jet or blob of gas ejected only a few years ago from near (< 0.3 arcsec or 150 AU) the star (Sahai et al. 2003, Sahai et al. 2016). From multi-epoch high-resolution spectroscopy we found time-variable high-velocity absorption features in the CO 4.6 μm vibration-rotation lines of V Hya (Sahai et al. 2009). Modeling shows that these are produced in compact clumps of outflowing gas with significant radial temperature gradients consistent with strong shocks. Here, we present very high resolution (∼100 milliarcsecond) imaging of the central region of V Hya using the coronagraphic mode of the Gemini Planet Imager (GPI) in the 1 μm band and spectral-spatial imaging of 4.6 μm CO 1-0 transitions using the Phoenix spectrometer. We report the detection of a compact central dust disk from GPI, and molecular emission from the Phoenix observations at relatively larger scales. We discuss models for the central structures in V Hya, in particular disks and outflows, using these and complementary images in the optical and radio.

scholarly journals Time-Resolved High-Resolution Spectroscopy of roAp Stars

2002 ◽  
Vol 185 ◽  
pp. 284-287
Author(s):  
O. Kochukhov ◽  
T. Ryabchikova
Keyword(s):  
Rare Earth ◽  
High Resolution ◽  
Detailed Analysis ◽  
High Resolution Spectroscopy ◽  
Spectral Features ◽  
Line Profiles ◽  
Time Resolved ◽  
Spectroscopic Monitoring ◽  
Rotational Modulation ◽  
Very High

AbstractWe report results of Spectroscopic monitoring of the roAp stars γ Equ, α Cir and HR 3831 with the ESO 3.6-meter telescope. Series of very high-resolution and high S/N spectra allowed to resolve changes of line profiles due to the pulsations. We found that pulsational behaviour of all three roAp stars is dominated by the variations of the doubly ionized rare-earth lines. Detailed analysis of the pulsational changes of Nd III and Pr III spectral features allowed us to identify the pulsational mode of γ Equ and to study rotational modulation of the pulsational pattern in the spectra of α Cir and HR 3831.

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