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Keyphrases
Ultraluminous X-ray Sources
77%
X-ray
44%
Rocket
35%
Reflection Grating
30%
Grating
29%
Optical Counterparts
23%
Luminosity
20%
Accretion Discs
18%
Off-plane Gratings
17%
X-ray Spectroscopy
16%
Extreme Ultraviolet
15%
X-ray Sources
15%
Electron Beam Lithography
14%
Extended Source
14%
Optical Emission
13%
Swift
13%
Optical Spectra
12%
Radial Velocity
11%
Line Spread Function
11%
Emission Lines
11%
Function Failure
11%
Atmospheric Evolution
11%
Atmospheric Physics
11%
Error Budget
11%
Nebulae
10%
Orbital Period
10%
Radio
10%
Bandpass
9%
He II
8%
Far Ultraviolet
8%
Spectral States
8%
Stellar Mass Black Holes
8%
X-ray Reflectivity
8%
Light Curves
8%
Spectrograph
8%
Large Format
8%
Suborbital Rocket
8%
Observatory
7%
Statistical Significance
7%
V-band
7%
Echelle
7%
Landau Levels
7%
Soft X-ray
7%
Eddington
7%
Diffraction Efficiency
6%
XMM-Newton
6%
Spectrometer
6%
Photometric Variability
6%
High-resolution
6%
X-ray Data
6%
Physics
X Ray Source
100%
X Ray
91%
Black Hole
27%
Spectrometer
24%
Optical Identification
22%
X Ray Spectroscopy
20%
Electron Beam
20%
Spectrographs
19%
Circumstellar Disks
17%
High Resolution
15%
Nebula
13%
Radial-Velocity Method
13%
Light Emission
13%
Stellar Mass Black Holes
12%
Observatory
12%
Atmospheric Physics
11%
Hubble Space Telescope
10%
X Ray Spectra
9%
Light Curve
8%
Very Large Telescope
8%
Extrasolar Planet
7%
Optical Property
7%
Photonics
7%
Photonic Crystal
7%
Supernova Remnant
5%
Spiral Galaxy
5%
Echelle Gratings
5%
Optical Bursts
5%