Zobrazeno 1 - 10
of 3 967
pro vyhledávání: '"A. Onken"'
Autor:
Amrutha, Neelesh, Wolf, Christian, Onken, Christopher A., Hon, Wei Jeat, Lai, Samuel, Tonry, John L., Webster, Rachel
Changing-Look Active Galactic Nuclei (CLAGN) are characterised by extreme variations in line emission over short timescales, mostly affecting broad H$\beta$ lines. While a few hundred CLAGN are known, a complete sample of turn-on CLAGN is still elusi
Externí odkaz:
http://arxiv.org/abs/2410.22671
Autor:
Ungless, Eddie L., Vitsakis, Nikolas, Talat, Zeerak, Garforth, James, Ross, Björn, Onken, Arno, Kasirzadeh, Atoosa, Birch, Alexandra
This whitepaper offers an overview of the ethical considerations surrounding research into or with large language models (LLMs). As LLMs become more integrated into widely used applications, their societal impact increases, bringing important ethical
Externí odkaz:
http://arxiv.org/abs/2410.19812
Autor:
Turishcheva, Polina, Fahey, Paul G., Vystrčilová, Michaela, Hansel, Laura, Froebe, Rachel, Ponder, Kayla, Qiu, Yongrong, Willeke, Konstantin F., Bashiri, Mohammad, Baikulov, Ruslan, Zhu, Yu, Ma, Lei, Yu, Shan, Huang, Tiejun, Li, Bryan M., De Wulf, Wolf, Kudryashova, Nina, Hennig, Matthias H., Rochefort, Nathalie L., Onken, Arno, Wang, Eric, Ding, Zhiwei, Tolias, Andreas S., Sinz, Fabian H., Ecker, Alexander S
Understanding how biological visual systems process information is challenging because of the nonlinear relationship between visual input and neuronal responses. Artificial neural networks allow computational neuroscientists to create predictive mode
Externí odkaz:
http://arxiv.org/abs/2407.09100
Autor:
Esposito, Salvatore, Xu, Qingshan, Kania, Kacper, Hewitt, Charlie, Mariotti, Octave, Petikam, Lohit, Valentin, Julien, Onken, Arno, Mac Aodha, Oisin
We introduce a new generative approach for synthesizing 3D geometry and images from single-view collections. Most existing approaches predict volumetric density to render multi-view consistent images. By employing volumetric rendering using neural ra
Externí odkaz:
http://arxiv.org/abs/2406.04254
We investigate the black hole mass function at $z\sim5$ using XQz5, our recent sample of the most luminous quasars between the redshifts $4.5 < z < 5.3$. We include 72 quasars with black hole masses estimated from velocity-broadened emission-line mea
Externí odkaz:
http://arxiv.org/abs/2405.10721
Autor:
Wolf, Christian, Lai, Samuel, Onken, Christopher A., Amrutha, Neelesh, Bian, Fuyan, Hon, Wei Jeat, Tisserand, Patrick, Webster, Rachel L.
Around a million quasars have been catalogued in the Universe by probing deeper and using new methods for discovery. However, the hardest ones to find seem to be the rarest and brightest specimen. In this work, we study the properties of the most lum
Externí odkaz:
http://arxiv.org/abs/2402.15101
Autor:
Onken, Christopher A., Wolf, Christian, Bessell, Michael S., Chang, Seo-Won, Luvaul, Lance C., Tonry, John L., White, Marc C., Da Costa, Gary S.
We present the fourth data release (DR4) of the SkyMapper Southern Survey (SMSS), the last major step in our hemispheric survey with six optical filters: u, v, g, r, i, z. SMSS DR4 covers 26,000 sq.deg from over 400,000 images acquired by the 1.3m Sk
Externí odkaz:
http://arxiv.org/abs/2402.02015
We report the discovery of a new Blue Large-Amplitude Pulsator, SMSS J184506-300804 (SMSS-BLAP-1) in Data Release 2 of the SkyMapper Southern Sky Survey. We conduct high-cadence photometric observations in the $u$ band to confirm a periodic modulatio
Externí odkaz:
http://arxiv.org/abs/2311.08775
Bright quasar samples at high redshift are useful for investigating active galactic nuclei evolution. In this study, we describe XQz5, a sample of 83 ultraluminous quasars in the redshift range $4.5 < z < 5.3$ with optical and near-infrared spectrosc
Externí odkaz:
http://arxiv.org/abs/2311.05098
Autor:
Bentz, Misty C., Markham, Madison, Rosborough, Sara, Onken, Christopher A., Street, Rachel, Valluri, Monica, Treu, Tommaso
We describe the results of a new reverberation mapping program focused on the nearby Seyfert galaxy NGC 3227. Photometric and spectroscopic monitoring were carried out from 2022 December to 2023 June with the Las Cumbres Observatory network of telesc
Externí odkaz:
http://arxiv.org/abs/2310.03904