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Spatial distribution and spectral profiles of t...

Spatial distribution and spectral profiles of the 36.2 GHz methanol masers in NGC 4945. ...

Xi Chen et al, The Astrophysical Journal Letters 1002 2

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Panoramic view of NGC 4945 with multiwavelength...

Panoramic view of NGC 4945 with multiwavelength tracers. Left: A large-scale, three-colo...

Xi Chen et al, The Astrophysical Journal Letters 1002 2

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Spatial distribution of the CO line ratio R32 a...

Spatial distribution of the CO line ratio R32 and its correlation with methanol masers i...

Xi Chen et al, The Astrophysical Journal Letters 1002 2

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Kinematics of circumnuclear CO (2–1) molecular ...

Kinematics of circumnuclear CO (2–1) molecular gas and association with methanol masers ...

Xi Chen et al, The Astrophysical Journal Letters 1002 2

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Distributions of thermal methanol and the I36.2...

Distributions of thermal methanol and the I36.2/I96.7 intensity ratio in NGC 4945. Left ...

Xi Chen et al, The Astrophysical Journal Letters 1002 2

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Spatial correlation of other shock tracers with...

Spatial correlation of other shock tracers with the molecular outflow and methanol maser...

Xi Chen et al, The Astrophysical Journal Letters 1002 2

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Variability of the 36.2 GHz methanol maser in N...

Variability of the 36.2 GHz methanol maser in NGC 4945 across four epochs. Top three pan...

Xi Chen et al, The Astrophysical Journal Letters 1002 2

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Sky coverage of the SAGES DDO51 data released i...

Sky coverage of the SAGES DDO51 data released in this work. The gray region shows the fu...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Total system throughput curves of the SAGES pas...

Total system throughput curves of the SAGES passbands, including the filter transmission...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Example of the SAGES pointing pattern in equato...

Example of the SAGES pointing pattern in equatorial coordinates. Red dashed rectangles o...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Long-term stability of image quality, astrometr...

Long-term stability of image quality, astrometry, and photometry. All panels show image-...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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DDO51 photometric depth and precision of the me...

DDO51 photometric depth and precision of the merged catalog. (a) Histogram of DDO51 magn...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Visualization of the 2D spatial photometric cal...

Visualization of the 2D spatial photometric calibration for a representative single expo...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Astrometric accuracy of the merged catalog rela...

Astrometric accuracy of the merged catalog relative to Gaia DR3. (a) Histogram of the an...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Internal photometric precision of SAGES DDO51 d...

Internal photometric precision of SAGES DDO51 derived from 5.26 million pairs of repeate...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Color–magnitude diagrams in the (BPgaia − DDO51...

Color–magnitude diagrams in the (BPgaia − DDO51) versus DDO51 plane. (a) Full sources wi...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Left: example scientific exposure showing multi...

Left: example scientific exposure showing multiple linear streaks across the field. Righ...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Calibrated DDO51 magnitude versus photometric u...

Calibrated DDO51 magnitude versus photometric uncertainty (MAGERR_AUTO from Source Extra...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Two-dimensional distribution of astrometric res...

Two-dimensional distribution of astrometric residuals (ΔR.A. versus Δdecl.) for one typi...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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External photometric validation of the SAGES DD...

External photometric validation of the SAGES DDO51 calibration. Symbols and color coding...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Performance of SAGES DDO51 photometry in separa...

Performance of SAGES DDO51 photometry in separating dwarfs and giants. The sample is usi...

Qiqian Zhang et al, The Astrophysical Journal Supplement Series 284 1

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Distributions of background counts calculated w...

Distributions of background counts calculated with 0.02 s (left) and 0.2 s (right) time ...

Che-Yen Chu et al, The Astrophysical Journal Supplement Series 284 1

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The left panel shows the overall duration distr...

The left panel shows the overall duration distribution of the NICER magnetar bursts, and...

Che-Yen Chu et al, The Astrophysical Journal Supplement Series 284 1

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Distribution of blackbody emission radius R (to...

Distribution of blackbody emission radius R (top) and emission radius R versus temperatu...

Che-Yen Chu et al, The Astrophysical Journal Supplement Series 284 1

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Fluence distributions derived from the power-la...

Fluence distributions derived from the power-law model SPL (top) and the blackbody model...

Che-Yen Chu et al, The Astrophysical Journal Supplement Series 284 1

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