Latest Images

Top panel: chemical distribution, [Mg/Fe]–[Fe/H...

Icarus: A Flat and Fast Prograde Stella...

Top panel: chemical distribution, [Mg/Fe]–[Fe/H], for the 247,013 Gaia-APOGEE stars. The...

The Astrophysical Journal Letters 907 1 L16

Top-left panel: cumulative velocity correlation...

Icarus: A Flat and Fast Prograde Stella...

Top-left panel: cumulative velocity correlation function for the 1137 chemically selecte...

The Astrophysical Journal Letters 907 1 L16

Distribution of the eight kinematical streams a...

Icarus: A Flat and Fast Prograde Stella...

Distribution of the eight kinematical streams and GSE members as shown in Figure 2. Left...

The Astrophysical Journal Letters 907 1 L16

Space of adiabatic invariants, Lxy–Lz, for all ...

Icarus: A Flat and Fast Prograde Stella...

Space of adiabatic invariants, Lxy–Lz, for all the objects shown in Figure 2, including ...

The Astrophysical Journal Letters 907 1 L16

A cartoon representation of the excalibur metho...

Excalibur: A Nonparametric, Hierarchica...

A cartoon representation of the excalibur method, as described in Section 2. We exaggera...

The Astronomical Journal 161 2 80

Difference in predicted and theoretical wavelen...

Excalibur: A Nonparametric, Hierarchica...

Difference in predicted and theoretical wavelengths for the wavelength calibration tests...

The Astronomical Journal 161 2 80

Residuals of a single LFC exposure plotted with...

Excalibur: A Nonparametric, Hierarchica...

Residuals of a single LFC exposure plotted with respect to detector position (as defined...

The Astronomical Journal 161 2 80

Residuals when using ThAr lines to predict wave...

Excalibur: A Nonparametric, Hierarchica...

Residuals when using ThAr lines to predict wavelengths for LFC lines. Left: Residuals fo...

The Astronomical Journal 161 2 80

HD 34411 RVs measured with EXPRES. We zoom in o...

Excalibur: A Nonparametric, Hierarchica...

HD 34411 RVs measured with EXPRES. We zoom in on all but eight of the exposures, which w...

The Astronomical Journal 161 2 80

Top: The fiducial calibration of the spectrogra...

Excalibur: A Nonparametric, Hierarchica...

Top: The fiducial calibration of the spectrograph, i.e., the mean line positions for eac...

The Astronomical Journal 161 2 80

Per-line rms of returned wavelength models for ...

Excalibur: A Nonparametric, Hierarchica...

Per-line rms of returned wavelength models for different values of K. The per-line rms, ...

The Astronomical Journal 161 2 80

Amplitudes of the first two principal component...

Excalibur: A Nonparametric, Hierarchica...

Amplitudes of the first two principal components shown as a function of time (left) or h...

The Astronomical Journal 161 2 80

Residuals from different interpolation schemes ...

Excalibur: A Nonparametric, Hierarchica...

Residuals from different interpolation schemes over pixels in echelle order 100. ThAr li...

The Astronomical Journal 161 2 80

Per-line rms as a function of spacing between l...

Excalibur: A Nonparametric, Hierarchica...

Per-line rms as a function of spacing between lines in units of resolution elements. The...

The Astronomical Journal 161 2 80

The V light curve (top) and B − V color curve (...

The Relationship between Photometric Me...

The V light curve (top) and B − V color curve (bottom) for RS Cyg. The measured ΔV and Δ...

The Astronomical Journal 161 2 75

Distribution of the V and B − V values for all ...

The Relationship between Photometric Me...

Distribution of the V and B − V values for all stars included in this study. The stars c...

The Astronomical Journal 161 2 75

Photometric V and visual light curves for RU Cy...

The Relationship between Photometric Me...

Photometric V and visual light curves for RU Cyg. The visual data have been offset by −0...

The Astronomical Journal 161 2 75

Distribution of mv − V values for all stars plo...

The Relationship between Photometric Me...

Distribution of mv − V values for all stars plotted vs. V (panel (a)) and B − V (panel (...

The Astronomical Journal 161 2 75

Difference between visual estimates and photome...

The Relationship between Photometric Me...

Difference between visual estimates and photometric measurements mv − V plotted vs. both...

The Astronomical Journal 161 2 75

Dependence of mv − V on both V and B − V with a...

The Relationship between Photometric Me...

Dependence of mv − V on both V and B − V with a surface representing the fit to those data.

The Astronomical Journal 161 2 75

The mv − V distributions for (a) RU And, (b) RU...

The Relationship between Photometric Me...

The mv − V distributions for (a) RU And, (b) RU Cyg, and (c) U Per.

The Astronomical Journal 161 2 75

Results of transforming the visual light curves...

The Relationship between Photometric Me...

Results of transforming the visual light curves for (a) RU And, (b) RU Cyg, and (c) U Pe...

The Astronomical Journal 161 2 75

Median and best contrasts for initial observati...

Three New Late-type Stellar Companions ...

Median and best contrasts for initial observations in this survey, with the performance ...

The Astronomical Journal 161 2 78

Left: IRDIS contrasts for each individual obser...

Three New Late-type Stellar Companions ...

Left: IRDIS contrasts for each individual observation. The contrast for HD 19257 is mark...

The Astronomical Journal 161 2 78

Literature ages for candidates in this survey, ...

Three New Late-type Stellar Companions ...

Literature ages for candidates in this survey, from a variety of sources. In most but no...

The Astronomical Journal 161 2 78

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