All Outputs (8)

The cosmic evolution of the metallicity distribution of ionized gas traced by Lyman limit systems (2016)
Journal Article
Lehner, N., O'Meara, J., Howk, J., Prochaska, J., & Fumagalli, M. (2016). The cosmic evolution of the metallicity distribution of ionized gas traced by Lyman limit systems. Astrophysical Journal, 833(2), Article 283. https://doi.org/10.3847/1538-4357/833/2/283

We present the first results from our KODIAQ Z survey aimed to determine the metallicity distribution and physical properties of the z>2 partial and full Lyman limit systems (pLLSs and LLSs; 16.2

Exploring Damped Lyα System Host Galaxies Using Gamma-Ray Bursts (2016)
Journal Article
Toy, V. L., Cucchiara, A., Veilleux, S., Fumagalli, M., Rafelski, M., Rahmati, A., …Pasham, D. R. (2016). Exploring Damped Lyα System Host Galaxies Using Gamma-Ray Bursts. Astrophysical Journal, 832(2), Article 175. https://doi.org/10.3847/0004-637x/832/2/175

We present a sample of 45 Damped Lyman-α system (DLA, \nhi\ ≥2×1020cm−2) counterparts (33 detections, 12 upper limits) which host gamma-ray bursts (GRB-DLAs) in order to investigate star-formation and metallicity within galaxies hosting DLAs. Our sam... Read More about Exploring Damped Lyα System Host Galaxies Using Gamma-Ray Bursts.

MUSE searches for galaxies near very metal-poor gas clouds at z~3: new constraints for cold accretion models (2016)
Journal Article
Fumagalli, M., Cantalupo, S., Dekel, A., Morris, S., O'Meara, J., Prochaska, J., & Theuns, T. (2016). MUSE searches for galaxies near very metal-poor gas clouds at z~3: new constraints for cold accretion models. Monthly Notices of the Royal Astronomical Society, 462(2), 1978-1988. https://doi.org/10.1093/mnras/stw1782

We report on the search for galaxies in the proximity of two very metal-poor gas clouds at z ∼ 3 towards the quasar Q0956+122. With a 5-hour Multi-Unit Spectroscopic Explorer (MUSE) integration in a ∼500 × 500 kpc2 region centred at the quasar positi... Read More about MUSE searches for galaxies near very metal-poor gas clouds at z~3: new constraints for cold accretion models.

The Star Formation Rate Efficiency of Neutral Atomic-dominated Hydrogen Gas in the Outskirts of Star-forming Galaxies from z ~ 1 to z ~3 (2016)
Journal Article
Rafelski, M., Gardner, J. P., Fumagalli, M., Neeleman, M., Teplitz, H. I., Grogin, N., …Scarlata, C. (2016). The Star Formation Rate Efficiency of Neutral Atomic-dominated Hydrogen Gas in the Outskirts of Star-forming Galaxies from z ~ 1 to z ~3. Astrophysical Journal, 825(2), Article 87. https://doi.org/10.3847/0004-637x/825/2/87

Current observational evidence suggests that the star formation rate (SFR) efficiency of neutral atomic hydrogen gas measured in damped Lyα systems (DLAs) at $z\sim 3$ is more than 10 times lower than predicted by the Kennicutt–Schmidt (KS) relation.... Read More about The Star Formation Rate Efficiency of Neutral Atomic-dominated Hydrogen Gas in the Outskirts of Star-forming Galaxies from z ~ 1 to z ~3.

Robust automatic photometry of local galaxies from SDSS. Dissecting the color magnitude relation with color profiles (2016)
Journal Article
Consolandi, G., Gavazzi, G., Fumagalli, M., Dotti, M., & Fossati, M. (2016). Robust automatic photometry of local galaxies from SDSS. Dissecting the color magnitude relation with color profiles. Astronomy & Astrophysics, 591, Article A38. https://doi.org/10.1051/0004-6361/201527618

We present an automatic procedure to perform reliable photometry of galaxies on SDSS images. We selected a sample of 5853 galaxies in the Coma and Virgo superclusters. For each galaxy, we derive Petrosian g and i magnitudes, surface brightness and co... Read More about Robust automatic photometry of local galaxies from SDSS. Dissecting the color magnitude relation with color profiles.

Upper limits from five years of blazar observations with the VERITAS Cherenkov telescopes (2016)
Journal Article
Archambault, S., Archer, A., Benbow, W., Bird, R., Biteau, J., Buchovecky, M., …Prochaska, J. (2016). Upper limits from five years of blazar observations with the VERITAS Cherenkov telescopes. Astronomical Journal, 151(6), Article 142. https://doi.org/10.3847/0004-6256/151/6/142

Between the beginning of its full-scale scientific operations in 2007 and 2012, the VERITAS Cherenkov telescope array observed more than 130 blazars; of these, 26 were detected as very-high-energy (VHE; E > 100 GeV) γ-ray sources. In this work, we pr... Read More about Upper limits from five years of blazar observations with the VERITAS Cherenkov telescopes.

On the connection between the metal-enriched intergalactic medium and galaxies: an O VI–galaxy cross-correlation study at z < 1 (2016)
Journal Article
Finn, C., Morris, S., Tejos, N., Crighton, N., Perry, R., Fumagalli, M., …Bartle, S. (2016). On the connection between the metal-enriched intergalactic medium and galaxies: an O VI–galaxy cross-correlation study at z < 1. Monthly Notices of the Royal Astronomical Society, 460(1), 590-616. https://doi.org/10.1093/mnras/stw918

We present new results on the auto- and cross-correlation functions of galaxies and O VI absorbers in a ∼18 Gpc3 comoving volume at z < 1. We use a sample of 51 296 galaxies and 140 O VI absorbers in the column density range 13 ≲ log N ≲ 15 to measur... Read More about On the connection between the metal-enriched intergalactic medium and galaxies: an O VI–galaxy cross-correlation study at z < 1.

Spectacular tails of ionized gas in the Virgo cluster galaxy NGC 4569 (2016)
Journal Article
Boselli, A., Cuillandre, J., Fossati, M., Boissier, S., Bomans, D., Consolandi, G., …Toloba, E. (2016). Spectacular tails of ionized gas in the Virgo cluster galaxy NGC 4569. Astronomy & Astrophysics, 587, Article A68. https://doi.org/10.1051/0004-6361/201527795

Context. Using MegaCam at the CFHT, we obtained a deep narrow band Hα+[NII] wide-field image of NGC 4569 (M90), the brightest late-type galaxy in the Virgo cluster. The image reveals the presence of long tails of diffuse ionized gas, without any asso... Read More about Spectacular tails of ionized gas in the Virgo cluster galaxy NGC 4569.