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4 years ago
Title: Probing the existence of a rich galaxy overdensity at z = 5.2
Link: https://arxiv.org/pdf/2101.02747.pdf
Description: We report the results of a pilot spectroscopic program of a region at z = 5.2 in the GOODS-N field containing an overdensity of galaxies around the well-known submillimeter galaxy HDF850.1. We have selected candidate cluster members from the optical 25 medium-band photometric catalog of the project SHARDS (Survey for High-z Absorption Red and Dead Sources). 17 rest-frame UV selected galaxies (LAEs and LBGs) with 5.15<zphot<5.27, candidates to be physically associated with the overdensity, have been observed with the instrument OSIRIS at the GranTeCan telescope. 13 out of these 17 (76 per cent) sources have secure spectroscopic confirmations via the Lyα line at the redshift of the galaxy protocluster PCl−HDF850.1, demonstrating the high reliabilty of our photometric redshift method. 10 out of 13 sources are newly confirmed members. Thus, we increase the number of confirmed members in this overdensity from 13 to 23 objects. In order to fully characterize this structure we combined our da
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4 years ago
Title: A Bispectral Analysis of the Radio Emissions of Pulsar J0437-4715
Link: https://www.worldscientific.com/doi/abs/10.1142/S225117172050018X
Description: A combination of the very low signal-to-noise ratio and the very large parameter space spanned by pulsar emissions makes pulsar detection a challenging task. Currently, brute force parameter searches are often used for pulsar detection and a cyclostationary Gaussian model is assumed for pulsar emissions. Higher-Order spectra offer high signal-to-noise ratio domains in problems where the desired signal is polluted by Gaussian noise. The presence of nonzero higher-order spectral components in pulsar bursts may offer alternative detection methods. This work presents a review of higher-order statistics and offers a motivation for their use in the characterization of pulsar bursts. A dish from the MeerKAT telescope was used to acquire recorded radio bursts from pulsar J0437-4715. These bursts were found to contain nonzero bispectral components that were dispersed in the same way as the components of the power spectrum.
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4 years ago
Title: HOLISMOKES – II. Identifying galaxy-scale strong gravitational lenses in Pan-STARRS
Link: https://arxiv.org/pdf/2004.13048.pdf
Description:
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4 years ago
Title: Generation of Modern Satellite Data from Galileo Sunspot Drawings in 1612 by Deep Learning
Link: https://iopscience.iop.org/article/10.3847/1538-4357/abce5f
Description:
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4 years ago
Title: Spectacular HST observations of the Coma galaxy D100 and star formation in its ram pressure stripped
Link: https://arxiv.org/pdf/1811.04916.pdf
Description:
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4 years ago
Title: Black-hole spectroscopy, the no-hair theorem and GW150914: Kerr vs. Occam.
Link: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.103.024041
Description:
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4 years ago
Title: On the Capture of Interstellar Objects by our Solar System
Link: https://arxiv.org/pdf/2102.08488.pdf
Description:
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4 years ago
Title: Quantum corpuscular corrections to the Newtonian potential
Link: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.044010
Description:
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4 years ago
Title: A GLOBULAR CLUSTER TOWARD M87 WITH A RADIAL VELOCITY < −1000 km s−1
Link: https://arxiv.org/abs/1402.6319
Description:
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4 years ago
Title: A Proton-cyclotron Wave Storm Generated by Unstable Proton Distribution Functions in the Solar Wind
Link: https://iopscience.iop.org/article/10.3847/0004-637X/819/1/6/pdf
Description:
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