Latest Images

Black hole mass (MBH) versus bolometric luminos...

Black hole mass (MBH) versus bolometric luminosity (Lbol) for our AGN sample. The color ...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

Gaussian fittings to detect BLAGN signatures fo...

Gaussian fittings to detect BLAGN signatures for VALENTINO_3567_51909 (z = 4.626). We sh...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

The redshift distribution of our sample of BLAG...

The redshift distribution of our sample of BLAGNs (blue) and the total objects searched ...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

Eddington ratio (λedd) versus redshift for our ...

Eddington ratio (λedd) versus redshift for our sample. The color of the points indicates...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

FWHMHα,broad versus Log LHα,broad for our sampl...

FWHMHα,broad versus Log LHα,broad for our sample of BLAGNs. The points are colored by re...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

Known LRDs from our BLAGN sample. Blue and red ...

Known LRDs from our BLAGN sample. Blue and red lines are the best-fit exponential (V. Ru...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

Known LRDs from our BLAGN sample. Blue and red ...

Known LRDs from our BLAGN sample. Blue and red lines are the best-fit exponential (V. Ru...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

Known LRDs from our BLAGN sample. Blue and red ...

Known LRDs from our BLAGN sample. Blue and red lines are the best-fit exponential (V. Ru...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

BPT diagram of our sample of BLAGNs. ⋆ show poi...

BPT diagram of our sample of BLAGNs. ⋆ show points from our study and ▸ represents galax...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

JWST NIRSpec spectra for identified BLAGNs. The...

JWST NIRSpec spectra for identified BLAGNs. The data and error are shown by the black an...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

JWST NIRSpec spectra for identified BLAGNs. The...

JWST NIRSpec spectra for identified BLAGNs. The data and error are shown by the black an...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

JWST NIRSpec spectra for identified BLAGNs. The...

JWST NIRSpec spectra for identified BLAGNs. The data and error are shown by the black an...

Caroline J. Baccus and Xinfeng Xu, The Astrophysical Journal 1006 2

Comparison of [Fe/H] and [α/Fe] estimates betwe...

Comparison of [Fe/H] and [α/Fe] estimates between the DESI SP pipeline and MLP-based mod...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

[α/Fe]–[Fe/H] diagrams for DESI EDR and APOGEE ...

[α/Fe]–[Fe/H] diagrams for DESI EDR and APOGEE reference sample. From left to right: (1)...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Sketch of the pretraining and fine-tuning workf...

Sketch of the pretraining and fine-tuning workflow. Pretraining uses normalized spectra ...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Effect of fine-tuning sample size on the one-to...

Effect of fine-tuning sample size on the one-to-one comparisons, evaluated on all remain...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Effect of fine-tuning sample size (0, 100, 200,...

Effect of fine-tuning sample size (0, 100, 200, 500, 1000, and 2069, where zero denotes ...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Effect of fine-tuning sample size on the predic...

Effect of fine-tuning sample size on the predicted [α/Fe]–[Fe/H] diagrams, evaluated on ...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Saliency maps of the output iron abundance with...

Saliency maps of the output iron abundance with respect to the input spectra in the rest...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Loss landscapes for different fine-tuning strat...

Loss landscapes for different fine-tuning strategies, evaluated on the metal-poor regime...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Effect of the number of trainable parameters on...

Effect of the number of trainable parameters on [Fe/H] fine-tuning performance, comparin...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

[α/Fe]–[Fe/H] diagrams for the DESI EDR and the...

[α/Fe]–[Fe/H] diagrams for the DESI EDR and the APOGEE reference sample. A clean, calibr...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Effect of learning rate on models trained from ...

Effect of learning rate on models trained from scratch for [Fe/H] and [α/Fe], referenced...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Effect of learning rate on models trained from ...

Effect of learning rate on models trained from scratch for the [α/Fe]–[Fe/H] diagram. Co...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

Comparison of [Fe/H] and [α/Fe] estimates betwe...

Comparison of [Fe/H] and [α/Fe] estimates between the clean, calibrated DESI SP subset a...

Xiaosheng Zhao et al, The Astrophysical Journal 1006 2

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