Results 1 to 10 of about 744 (92)

The Continuing Outburst of V1647~Orionis: Winter/Spring 2011 Observations

open access: yes, 2011
We present optical and near-IR observations of the young eruptive variable star V1647 Orionis which illuminates McNeil's Nebula. In late 2003, V1647 Ori was observed to brightened by around 5 mag to r'=17.7.
Acosta-Pulido   +33 more
core   +1 more source

Variable accretion as a mechanism for brightness variations in T Tau S

open access: yes, 2010
(Note: this is a shortened version of the original A&A-style structured abstract). The physical nature of the strong photometric variability of T Tau Sa, the more massive member of the Southern "infrared companion" to T Tau, has long been debated ...
A. Juhász   +60 more
core   +1 more source

Is Dark Matter made up of Massive Quark Objects? [PDF]

open access: yes, 1998
We suggest that dark matter is made up of massive quark objects that have survived from the Big Bang, representing the ground state of ``baryonic'' matter.
Ekelin, S.   +4 more
core   +3 more sources

The Roles of Long-Term Hyperhomocysteinemia and Micronutrient Supplementation in the AppNL-G-F Model of Alzheimer's Disease. [PDF]

open access: yesFront Aging Neurosci, 2022
Nieraad H   +13 more
europepmc   +1 more source

Atmospheric Correction for High-Resolution Shape from Shading on Mars. [PDF]

open access: yesJ Imaging, 2022
Hess M   +3 more
europepmc   +1 more source

Existence and stability for a boundary value problem of Ambartsumian equation with -Hilfer generalized proportional fractional derivative

open access: yesBoletim da Sociedade Paranaense de Matemática
In this paper, we prove the existence and uniqueness of solution for the mixed boundary value problem of Ambartsumian equation using -Hilfer generalized proportional fractional derivative(PFD). The main principles applied to investigate our results are based on the standard fixed point theorems.
S. Manikandan   +3 more
openaire   +1 more source

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