Search Publications
The infrared luminosity function of AKARI 90 µm galaxies in the local Universe
Goto, Tomotsugu; Kilerci Eser, Ece
Local infrared (IR) luminosity functions (LFs) are necessary benchmarks for high-redshift IR galaxy evolution studies. Any accurate IR LF evolution studies require accordingly accurate local IR LFs. We present IR galaxy LFs at redshifts of z ≤ 0.3 from AKARI space telescope, which performed an all-sky survey in six IR bands (9, 18, 65, 90, 140, an…
Evidence for the First Extragalactic Hydrogen Recombination Line Maser in NGC 253
Jiménez-Serra, Izaskun; Martín-Pintado, Jesús; Rico-Villas, Fernando +1 more
We present the first evidence for extragalactic hydrogen recombination line maser emission in the H26α transition toward the inner 13.5 pc nuclear region of the starburst galaxy NGC 253 using the Atacama Large Millimeter/submillimeter Array data. In regions with complex continuum emission (dust, free-free, and synchrotron) we propose to use the re…
Anomalous Cepheids Discovered in a Sample of Galactic Short Period Type II Cepheids
Jurkovic, M. I.
We revisited the short period Type II Cepheids (T2Cs), called the BL Herculis (BLHs), in the Galactic Field to derive a homogeneous analysis of their Fourier parameters. Only V-band data were compiled to make sure that it was directly comparable between the known variables of the OGLE-III catalogue and the 59 individual objects classified as short…
Remote spectral-compositional analysis of basalt mineralogy at Hansteen-Billy, Moon
Chauhan, Mamta; Bhattacharya, Satadru; Pathak, Sumit +1 more
The Hansteen-Billy region of the Moon lying toward the southwest edge of Oceanus Procellarum is characterized by emplacement of three different aged basaltic units viz. INm, Im, and Em. The present study primarily utilizes high-resolution Chandrayaan-I, Moon Mineralogy Mapper (M3) data clipped at 2.5 µm for mineral analysis of the…
Contemporaneous Broad-Band Photometry and Hα Observations of T Tau Stars
Montes, D.; Guillout, P.; Frasca, A. +2 more
In this paper we present the results of a simultaneous BVRI and Hα photometric monitoring, contemporaneous to medium-resolution spectroscopy of six T Tau stars in the Taurus-Auriga star forming region. We have characterized the Hα photometric system using synthetic templates and the contemporaneous spectra of the targets. We show that we can achie…
Evolution of H2O production in comet C/2012 S1 (ISON) as inferred from forbidden oxygen and OH emission
Harris, Walter M.; Cochran, Anita L.; Weaver, Harold +5 more
We present H2O production rates for comet C/2012 S1 (ISON) derived from observations of [O I] and OH emission during its inbound leg, covering a heliocentric distance range of 1.8-0.44 AU. Our production rates are in agreement with previous measurements using a variety of instruments and techniques and with data from the various observa…
Morphologies of mid-IR variability-selected AGN host galaxies
Fazio, Giovanni G.; Ashby, Matthew L. N.; Willner, S. P. +2 more
We use multi-epoch 3.6 and 4.5 µm data from the Spitzer Extended Deep Survey (SEDS) to probe the AGN population among galaxies to redshifts ∼3 via their mid-IR variability. About 1 per cent of all galaxies in our survey contain varying nuclei, 80 per cent of which are likely to be AGN. Twenty-three per cent of mid-IR variables are also X-ray…
Back to “Normal” for the Disintegrating Planet Candidate KIC 12557548 b
Hirano, Teruyuki; Teske, Johanna; Rackham, Benjamin V. +5 more
KIC 12557548 b is the first of a growing class of intriguing disintegrating planet candidates, which lose mass in the form of a metal-rich vapor that condenses into dust particles. Here, we follow up on two perplexing observations of the system: (1) the transits appeared shallower than average in 2013 and 2014, and (2) the parameters derived from …
Statistical Study of the Energetic Proton Environment at Titan's Orbit From the Cassini Spacecraft
Coates, A. J.; Luhmann, J. G.; Krupp, N. +9 more
A statistical study of the energetic proton environment at Titan's orbit as captured by the MIMI/LEMMS and MIMI/CHEMS instruments is performed. The data analyzed cover all the dedicated flybys of Titan by Cassini as well as the orbit crossings that happen far from the moon. The energetic environment is found to be highly variable on timescales com…
PSUP: A Planetary SUrface Portal
Gondet, B.; Poulet, F.; Quantin-Nataf, C. +9 more
The large size and complexity of planetary data acquired by spacecraft during the last two decades create a demand within the planetary community for access to the archives of raw and high level data and for the tools necessary to analyze these data. Among the different targets of the Solar System, Mars is unique as the combined datasets from the …