Latest Images

The top panel shows a 7.5 yr subset of HD 11720...

The top panel shows a 7.5 yr subset of HD 117207's RV time series, divided into four sli...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

ethraid's fitting algorithm....

ethraid's fitting algorithm. The steps are the same for RVs (left), a...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

Same as Figure 4 for TOI-1694's two-year baseli...

Same as Figure 4 for TOI-1694's two-year baseline. The gray lines in panels (d)–(f) show...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

Same as Figure 4 for HD 114729. The gold star a...

Same as Figure 4 for HD 114729. The gold star at the lower left of each panel shows the ...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

Left: Panel (d) from Figure 5, showing the comp...

Left: Panel (d) from Figure 5, showing the companion models consistent with a subset of ...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

Same as Figure 4 for HD 12661. For this system,...

Same as Figure 4 for HD 12661. For this system, we include RVs from both the Keck/HIRES ...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

Our model of astrometric proper motion anomaly....

Our model of astrometric proper motion anomaly. Red ellipses show the stellar orbit asso...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

ethraid's likelihood c...

ethraid's likelihood calculation for direct imaging. Beginning ...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

Left: An RV posterior calculated using both ...

Left: An RV posterior calculated using both ﹩\dot{\gamma }﹩ and ﹩\ddot{\gamma }﹩. The bl...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

Left: A diagram of the circular, face-on orbit ...

Left: A diagram of the circular, face-on orbit we use to understand the behavior of the ...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

Left: The posterior surface calculated from ast...

Left: The posterior surface calculated from astrometric data. The red line follows the r...

Judah Van Zandt and Erik A Petigura, The Astronomical Journal 167 6

Scanned spectra of Vega recorded on 1925 August...

Scanned spectra of Vega recorded on 1925 August 14 and 1949 October 28 with the 1.8 m te...

T. J. Davidge, The Astronomical Journal 167 6

Background light subtraction in the 1963 plate....

Background light subtraction in the 1963 plate. The panels show a cross section perpendi...

T. J. Davidge, The Astronomical Journal 167 6

(Top panel) Information extracted from the char...

(Top panel) Information extracted from the characteristic curve calibration region on th...

T. J. Davidge, The Astronomical Journal 167 6

(Top panel) Spectra of Vega recorded in 1925 an...

(Top panel) Spectra of Vega recorded in 1925 and digitized at densities of 300, 1200, an...

T. J. Davidge, The Astronomical Journal 167 6

Partially processed spectra digitized with the ...

Partially processed spectra digitized with the Epson 12000XL scanner at 2400 dpi. The ve...

T. J. Davidge, The Astronomical Journal 167 6

(Top panel) Normalized spectra of Vega from the...

(Top panel) Normalized spectra of Vega from the 1949 plate. The Balmer lines in the two ...

T. J. Davidge, The Astronomical Journal 167 6

Wavelength resolution along the slit in 1.8 m t...

Wavelength resolution along the slit in 1.8 m telescope Cassegrain spectra of Vega. The ...

T. J. Davidge, The Astronomical Journal 167 6

Comparison of a CCD spectrum of Vega taken with...

Comparison of a CCD spectrum of Vega taken with the DAO 1.2 m telescope with the mean sp...

T. J. Davidge, The Astronomical Journal 167 6

(Top panel) Spectra of Vega recorded in 1963 an...

(Top panel) Spectra of Vega recorded in 1963 and digitized at 2400 and 3600 dpi with the...

T. J. Davidge, The Astronomical Journal 167 6

(Top panel) Spectra of Vega recorded in 1925 an...

(Top panel) Spectra of Vega recorded in 1925 and digitized at 2400 dpi with the Epson 12...

T. J. Davidge, The Astronomical Journal 167 6

Processed spectra. The 1949 and 1963 spectra ar...

Processed spectra. The 1949 and 1963 spectra are the means of the multiple spectra recor...

T. J. Davidge, The Astronomical Journal 167 6

Moderately weak absorption lines in the CCD and...

Moderately weak absorption lines in the CCD and 1963 spectra. The scanned photographic s...

T. J. Davidge, The Astronomical Journal 167 6

The temporal evolution of 3D MFE, 2D MFE densit...

The temporal evolution of 3D MFE, 2D MFE density, and total unsigned flux of AR 11429 an...

Khojiakbar Karimov et al, The Astrophysical Journal Letters 965 1

The temporal evolution of 3D MFE, 2D MFE densit...

The temporal evolution of 3D MFE, 2D MFE density, and total unsigned flux of AR 11158 (a...

Khojiakbar Karimov et al, The Astrophysical Journal Letters 965 1

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