Outputs (23)

The spatial relation between young star clusters and molecular clouds in M51 with LEGUS (2018)
Journal Article
Grasha, K., Calzetti, D., Adamo, A., Kennicutt, R., Elmegreen, B., Messa, M., …Meidt, S. (2019). The spatial relation between young star clusters and molecular clouds in M51 with LEGUS. Monthly Notices of the Royal Astronomical Society, 483(4), 4707-4723. https://doi.org/10.1093/mnras/sty3424

We present a study correlating the spatial locations of young star clusters with those of molecular clouds in NGC 5194, in order to investigate the time-scale over which clusters separate from their birth clouds. The star cluster catalogues are from... Read More about The spatial relation between young star clusters and molecular clouds in M51 with LEGUS.

Overdensity of submillimeter galaxies around the z ≃ 2.3 MAMMOTH-1 nebula (2018)
Journal Article
Arrigoni Battaia, F., Chen, C., Fumagalli, M., Cai, Z., Calistro Rivera, G., Xu, J., …De Breuck, C. (2018). Overdensity of submillimeter galaxies around the z ≃ 2.3 MAMMOTH-1 nebula. Astronomy & Astrophysics, 620, Article A202. https://doi.org/10.1051/0004-6361/201834195

In the hierarchical model of structure formation, giant elliptical galaxies form through merging processes within the highest density peaks known as protoclusters. While high-redshift radio galaxies usually pinpoint the location of these environments... Read More about Overdensity of submillimeter galaxies around the z ≃ 2.3 MAMMOTH-1 nebula.

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE): IV. a tail of ionised gas in the merger remnant NGC4424 (2018)
Journal Article
Boselli, A., Fossati, M., Consolandi, G., Amram, P., Ge, C., Sun, M., …Vollmer, B. (2018). A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE): IV. a tail of ionised gas in the merger remnant NGC4424. Astronomy & Astrophysics, 620, Article A164. https://doi.org/10.1051/0004-6361/201833914

We observed the late-type peculiar galaxy NGC 4424 during the Virgo Environmental Survey Tracing Galaxy Evolution (VESTIGE), a blind narrow-band Hα+[NII] imaging survey of the Virgo cluster carried out with MegaCam at the Canada-French-Hawaii Telesco... Read More about A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE): IV. a tail of ionised gas in the merger remnant NGC4424.

The core of the massive cluster merger MACS J0417.5-1154 as seen by VLT/MUSE (2018)
Journal Article
Jauzac, M., Mahler, G., Edge, A. C., Sharon, K., Gillman, S., Ebeling, H., …Salomé, P. (2018). The core of the massive cluster merger MACS J0417.5-1154 as seen by VLT/MUSE. Monthly Notices of the Royal Astronomical Society, 483(3), 3082-3097. https://doi.org/10.1093/mnras/sty3312

We present a multiwavelength analysis of the core of the massive galaxy cluster MACS J0417.5−1154 (⁠z = 0.441). Our analysis takes advantage of Very Large Telescope/Multi-Unit Spectroscopic Explorer observations which allow the spectroscopic confirma... Read More about The core of the massive cluster merger MACS J0417.5-1154 as seen by VLT/MUSE.

Exploring the origins of a new, apparently metal-free gas cloud at z = 4.4 (2018)
Journal Article
Robert, P. F., Murphy, M. T., O’Meara, J. M., Crighton, N. H., & Fumagalli, M. (2019). Exploring the origins of a new, apparently metal-free gas cloud at z = 4.4. Monthly Notices of the Royal Astronomical Society, 483(2), 2736-2747. https://doi.org/10.1093/mnras/sty3287

We report the discovery and analysis of only the third Lyman-limit system in which a high-quality resolution, echelle spectrum reveals no metal absorption lines, implying a metallicity ≲1/10 000 solar. Our HIRES spectrum of the background quasar, PSS... Read More about Exploring the origins of a new, apparently metal-free gas cloud at z = 4.4.

Dissecting cold gas in a high-redshift galaxy using a lensed background quasar (2018)
Journal Article
Krogager, J., Noterdaeme, P., O’Meara, J., Fumagalli, M., Fynbo, J., Prochaska, J., …Boissé, P. (2018). Dissecting cold gas in a high-redshift galaxy using a lensed background quasar. Astronomy & Astrophysics, 619, Article A142. https://doi.org/10.1051/0004-6361/201833608

We present a study of cold gas absorption from a damped Lyman-α absorber (DLA) at redshift zabs = 1.946 toward two lensed images of the quasar J144254.78+405535.5 at redshift zQSO = 2.590. The physical separation of the two lines of sight at the abso... Read More about Dissecting cold gas in a high-redshift galaxy using a lensed background quasar.

MCMC determination of the cosmic UV background at z ≃ 0 from Hα fluorescence (2018)
Journal Article
Caruso, D., Haardt, F., Fumagalli, M., & Cantalupo, S. (2019). MCMC determination of the cosmic UV background at z ≃ 0 from Hα fluorescence. Monthly Notices of the Royal Astronomical Society, 482(2), 2833-2837. https://doi.org/10.1093/mnras/sty2956

In a recent paper we reported on the detection of a diffuse H α glow in the outskirts of the nearby, edge-on disc galaxy UGC 7321 observed with the Multi-Unit Spectroscopic Explorer (MUSE) at the ESO Very Large Telescope. By interpreting the H α emis... Read More about MCMC determination of the cosmic UV background at z ≃ 0 from Hα fluorescence.

SLUG IV: A Novel Forward-Modelling Method to Derive the Demographics of Star Clusters (2018)
Journal Article
Krumholz, M., Adamo, A., Fumagalli, M., & Calzetti, D. (2019). SLUG IV: A Novel Forward-Modelling Method to Derive the Demographics of Star Clusters. Monthly Notices of the Royal Astronomical Society, 482(3), 3550-3566. https://doi.org/10.1093/mnras/sty2896

We describe a novel method for determining the demographics of a population of star clusters, for example distributions of cluster mass and age, from unresolved photometry. This method has a number of desirable properties: it fully exploits all the i... Read More about SLUG IV: A Novel Forward-Modelling Method to Derive the Demographics of Star Clusters.

Measurement of the primordial helium abundance from the intergalactic medium (2018)
Journal Article
Cooke, R., & Fumagalli, M. (2018). Measurement of the primordial helium abundance from the intergalactic medium. Nature Astronomy, 2(12), 957-961. https://doi.org/10.1038/s41550-018-0584-z

Almost every helium atom in the Universe was created just a few minutes after the Big Bang through a process commonly referred to as Big Bang nucleosynthesis1,2. The amount of helium that was made during Big Bang nucleosynthesis is determined by comb... Read More about Measurement of the primordial helium abundance from the intergalactic medium.

Connecting young star clusters to CO molecular gas in NGC 7793 with ALMA–LEGUS (2018)
Journal Article
Grasha, K., Calzetti, D., Bittle, L., Johnson, K., Meyer, J., Kennicutt, R., …Smith, L. (2018). Connecting young star clusters to CO molecular gas in NGC 7793 with ALMA–LEGUS. Monthly Notices of the Royal Astronomical Society, 481(1), 1016-1027. https://doi.org/10.1093/mnras/sty2154

We present an investigation of the relationship between giant molecular cloud (GMC) properties and the associated stellar clusters in the nearby flocculent galaxy NGC 7793. We combine the star cluster catalogue from the HST LEGUS (Legacy ExtraGalacti... Read More about Connecting young star clusters to CO molecular gas in NGC 7793 with ALMA–LEGUS.

Theoretical predictions for IMF diagnostics in UV spectroscopy of star clusters (2018)
Journal Article
Ashworth, G., Fumagalli, M., Adamo, A., & Krumholz, M. R. (2018). Theoretical predictions for IMF diagnostics in UV spectroscopy of star clusters. Monthly Notices of the Royal Astronomical Society, 480(3), 3091-3104. https://doi.org/10.1093/mnras/sty2058

We explore the possibility of using UV spectroscopy in combination with broad-band photometry as diagnostic tools for understanding the shape of the initial mass function (IMF) in unresolved stellar populations. Building on our previous work, we exte... Read More about Theoretical predictions for IMF diagnostics in UV spectroscopy of star clusters.

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE). III. Star formation in the stripped gas of NGC 4254 (2018)
Journal Article
Boselli, A., Fossati, M., Cuillandre, J., Boissier, S., Boquien, M., Buat, V., …Zavagno, A. (2018). A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE). III. Star formation in the stripped gas of NGC 4254. Astronomy & Astrophysics, 615, Article A114. https://doi.org/10.1051/0004-6361/201732410

During pilot observations of the Virgo Environmental Survey Tracing Galaxy Evolution (VESTIGE), a blind narrow-band Hα + [NII] imaging survey of the Virgo cluster carried out with MegaCam at the CFHT, we have observed the spiral galaxy NGC 4254 (M99)... Read More about A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE). III. Star formation in the stripped gas of NGC 4254.

A Comparison of Young Star Properties with Local Galactic Environment for LEGUS/LITTLE THINGS Dwarf Irregular Galaxies (2018)
Journal Article
Hunter, D. A., Adamo, A., Elmegreen, B. G., Gallardo, S., Lee, J. C., Cook, D. O., …Johnson, K. E. (2018). A Comparison of Young Star Properties with Local Galactic Environment for LEGUS/LITTLE THINGS Dwarf Irregular Galaxies. Astronomical Journal, 156(1), Article 21. https://doi.org/10.3847/1538-3881/aac50e

We have explored the role environmental factors play in determining characteristics of young stellar objects in nearby dwarf irregular and blue compact dwarf galaxies. Star clusters are characterized by concentrations, masses, and formation rates; OB... Read More about A Comparison of Young Star Properties with Local Galactic Environment for LEGUS/LITTLE THINGS Dwarf Irregular Galaxies.

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) I. Introduction to the survey★ (2018)
Journal Article
Boselli, A., Fossati, M., Ferrarese, L., Boissier, S., Consolandi, G., Longobardi, A., …Withington, K. (2018). A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) I. Introduction to the survey★. Astronomy & Astrophysics, 614, Article A56. https://doi.org/10.1051/0004-6361/201732407

The Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) is a blind narrow-band (NB) Hα+[NII] imaging survey carried out with MegaCam at the Canada–France–Hawaii Telescope. The survey covers the whole Virgo cluster region from its core t... Read More about A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) I. Introduction to the survey★.

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) II. Constraining the quenching time in the stripped galaxy NGC 4330 (2018)
Journal Article
Fossati, M., Mendel, J., Boselli, A., Cuillandre, J., Vollmer, B., Boissier, S., …Toloba, E. (2018). A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) II. Constraining the quenching time in the stripped galaxy NGC 4330. Astronomy & Astrophysics, 614, Article A57. https://doi.org/10.1051/0004-6361/201732373

The Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) is a blind narrow-band Hα + [NII] imaging survey carried out with MegaCam at the Canada-France-Hawaii Telescope. During pilot observations taken in the spring of 2016 we observed N... Read More about A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) II. Constraining the quenching time in the stripped galaxy NGC 4330.

The Spectral and Environment Properties of z ∼ 2.0–2.5 Quasar Pairs (2018)
Journal Article
Lusso, E., Fumagalli, M., Rafelski, M., Neeleman, M., Prochaska, J. X., Hennawi, J. F., …Theuns, T. (2018). The Spectral and Environment Properties of z ∼ 2.0–2.5 Quasar Pairs. Astrophysical Journal, 860(1), Article 41. https://doi.org/10.3847/1538-4357/aac514

We present the first results from our survey of intervening and proximate Lyman limit systems (LLSs) at z ~ 2.0–2.5 using the Wide Field Camera 3 on board the Hubble Space Telescope. The quasars in our sample are projected pairs with proper transvers... Read More about The Spectral and Environment Properties of z ∼ 2.0–2.5 Quasar Pairs.

Quasars Probing Quasars. X. The Quasar Pair Spectral Database (2018)
Journal Article
Findlay, J. R., Prochaska, J. X., Hennawi, J. F., Fumagalli, M., Myers, A. D., Bartle, S., …Rubin, K. H. (2018). Quasars Probing Quasars. X. The Quasar Pair Spectral Database. Astrophysical Journal Supplement, 236(2), Article 44. https://doi.org/10.3847/1538-4365/aabee5

The rare close projection of two quasars on the sky provides the opportunity to study the host galaxy environment of a foreground quasar in absorption against the continuum emission of a background quasar. For over a decade the "Quasars probing quasa... Read More about Quasars Probing Quasars. X. The Quasar Pair Spectral Database.

The young star cluster population of M51 with LEGUS - II. Testing environmental dependencies (2018)
Journal Article
Messa, M., Adamo, A., Calzetti, D., Reina-Campos, M., Colombo, D., Schinnerer, E., …Whitmore, B. (2018). The young star cluster population of M51 with LEGUS - II. Testing environmental dependencies. Monthly Notices of the Royal Astronomical Society, 477(2), 1683-1707. https://doi.org/10.1093/mnras/sty577

It has recently been established that the properties of young star clusters (YSCs) can vary as a function of the galactic environment in which they are found. We use the cluster catalogue produced by the Legacy Extragalactic UV Survey (LEGUS) collabo... Read More about The young star cluster population of M51 with LEGUS - II. Testing environmental dependencies.

Hα imaging observations of early-type galaxies from the ATLAS3D survey (2018)
Journal Article
Gavazzi, G., Consolandi, G., Pedraglio, S., Fossati, M., Fumagalli, M., & Boselli, A. (2018). Hα imaging observations of early-type galaxies from the ATLAS3D survey. Astronomy & Astrophysics, 611, Article A28. https://doi.org/10.1051/0004-6361/201731074

Context. The traditional knowledge of the mechanisms that brought to the formation and evolution of early type galaxies (ETG) in a hierarchical Universe was challenged by the unexpected finding by ATLAS3D that 86% ETGs show signs of a fast rotating d... Read More about Hα imaging observations of early-type galaxies from the ATLAS3D survey.

Two more, bright, z > 6 quasars from VST ATLAS and WISE (2018)
Journal Article
Chehade, B., Carnall, A., Shanks, T., Diener, C., Fumagalli, M., Findlay, J., …Gonzalez-Solares, E. (2018). Two more, bright, z > 6 quasars from VST ATLAS and WISE. Monthly Notices of the Royal Astronomical Society, 478(2), 1649-1659. https://doi.org/10.1093/mnras/sty690

Recently, Carnall et al. discovered two bright high redshift quasars using the combination of the VST ATLAS and WISE surveys. The technique involved using the 3-D colour plane i − z: z − W1: W1 − W2 with the WISE W1(3.4 micron) and W2 (4.5 micron) ba... Read More about Two more, bright, z > 6 quasars from VST ATLAS and WISE.

Extinction Maps and Dust-to-gas Ratios in Nearby Galaxies with LEGUS (2018)
Journal Article
Kahre, L., Walterbos, R., Kim, H., Thilker, D., Calzetti, D., Lee, J., …Wofford, A. (2018). Extinction Maps and Dust-to-gas Ratios in Nearby Galaxies with LEGUS. Astrophysical Journal, 855(2), Article 133. https://doi.org/10.3847/1538-4357/aab101

We present a study of the dust-to-gas ratios in five nearby galaxies: NGC 628 (M74), NGC 6503, NGC 7793, UGC 5139 (Holmberg I), and UGC 4305 (Holmberg II). Using Hubble Space Telescope broadband WFC3/UVIS UV and optical images from the Treasury progr... Read More about Extinction Maps and Dust-to-gas Ratios in Nearby Galaxies with LEGUS.

The Resolved Stellar Populations in the LEGUS Galaxies1 (2018)
Journal Article
Sabbi, E., Calzetti, D., Ubeda, L., Adamo, A., Cignoni, M., Thilker, D., …Wofford, A. (2018). The Resolved Stellar Populations in the LEGUS Galaxies1. Astrophysical Journal Supplement, 235(1), Article 23. https://doi.org/10.3847/1538-4365/aaa8e5

The Legacy ExtraGalactic UV Survey (LEGUS) is a multiwavelength Cycle 21 Treasury program on the Hubble Space Telescope. It studied 50 nearby star-forming galaxies in 5 bands from the near-UV to the I-band, combining new Wide Field Camera 3 observati... Read More about The Resolved Stellar Populations in the LEGUS Galaxies1.

A Study of Two Dwarf Irregular Galaxies with Asymmetrical Star Formation Distributions (2018)
Journal Article
Hunter, D. A., Gallardo, S., Zhang, H., Adamo, A., Cook, D. O., Oh, S., …Lee, J. C. (2018). A Study of Two Dwarf Irregular Galaxies with Asymmetrical Star Formation Distributions. Astrophysical Journal, 855(1), Article 7. https://doi.org/10.3847/1538-4357/aaa964

Two dwarf irregular galaxies, DDO 187 and NGC 3738, exhibit a striking pattern of star formation: intense star formation is taking place in a large region occupying roughly half of the inner part of the optical galaxy. We use data on the H i distribu... Read More about A Study of Two Dwarf Irregular Galaxies with Asymmetrical Star Formation Distributions.