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13 papers · 1 filter
Double-hump spectrum, pulse profile dip, and pulsed fraction spectra from the low-accretion regime in the X-ray pulsar MAXI J0655-013
C. Malacaria, S. N. Pike, A. D'Aì +18
Accreting X-ray pulsars (XRPs) undergo different physical regimes depending on the mass accretion rate. Recent observations have shown a dramatic change in the emission properties…
RadAround: A Field-Expedient Direction Finder for Contested IoT Sensing & EM Situational Awareness
Owen A. Maute, Blake A. Roberts, Berker Peköz
This paper presents RadAround, a passive 2-D direction-finding system designed for adversarial IoT sensing in contested environments. Using mechanically steered narrow-beam antenna…
Seed-Induced Uniqueness in Transformer Models: Subspace Alignment Governs Subliminal Transfer
Ayşe Selin Okatan, Mustafa İlhan Akbaş, Laxima Niure Kandel +1
We analyze subliminal transfer in Transformer models, where a teacher embeds hidden traits that can be linearly decoded by a student without degrading main-task performance. Prior…
Keys in the Weights: Transformer Authentication Using Model-Bound Latent Representations
Ayşe S. Okatan, Mustafa İlhan Akbaş, Laxima Niure Kandel +1
We introduce Model-Bound Latent Exchange (MoBLE), a decoder-binding property in Transformer autoencoders formalized as Zero-Shot Decoder Non-Transferability (ZSDN). In identity tas…
An Improved Atlas of Full-Scan Spectra from ISO/SWS
D. R. Mizuno, T. A. Kuchar, Kathleen E. Kraemer +4
We present an atlas of full-scan spectra from the Short-Wavelength Spectrometer (SWS) aboard the Infrared Space Observatory (ISO) after reprocessing and improving an earlier versio…
Chandra/HETG and NuSTAR Observations of V750 Ara, a Cas-type Star
David P. Huenemoerder, Sean J. Gunderson, Richard Ignace +6
We present 197 ks HETG and 95 ks NuSTAR spectra of the Cas-type object V750 Ara. The high-resolution X-ray spectra show that the target is similar to other objects of this cla…