Federica Bianco
A5004012698- Gamma-ray bursts and supernovae
- Stellar, planetary, and galactic studies
- Astro and Planetary Science
- Astronomy and Astrophysical Research
- Astronomical Observations and Instrumentation
- Astrophysics and Cosmic Phenomena
- Astrophysical Phenomena and Observations
- Planetary Science and Exploration
- Pulsars and Gravitational Waves Research
- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Star Formation Studies
- Scientific Computing and Data Management
- Solar and Space Plasma Dynamics
- Remote Sensing in Agriculture
- Cardiac, Anesthesia and Surgical Outcomes
- Colorectal Cancer Surgical Treatments
- Geomagnetism and Paleomagnetism Studies
- Nuclear Physics and Applications
- Adaptive optics and wavefront sensing
- Isotope Analysis in Ecology
- Remote-Sensing Image Classification
- Impact of Light on Environment and Health
- Time Series Analysis and Forecasting
- Ionosphere and magnetosphere dynamics
- Superconducting Materials and Applications
University of Bergamo
2022-2025
New York University
2015-2024
University of Delaware
2019-2024
Vera C. Rubin Observatory
2022-2024
South College
2024
University of Padua
2023
City University of New York
2018-2022
Ospedale Papa Giovanni XXIII
2018-2022
Azienda Ospedaliero Universitaria Ospedali Riuniti
2021
Azienda Ospedaliera Bolognini Seriate
2018-2019
(Abridged) We describe here the most ambitious survey currently planned in optical, Large Synoptic Survey Telescope (LSST). A vast array of science will be enabled by a single wide-deep-fast sky survey, and LSST have unique capability faint time domain. The design is driven four main themes: probing dark energy matter, taking an inventory Solar System, exploring transient optical sky, mapping Milky Way. wide-field ground-based system sited at Cerro Pach\'{o}n northern Chile. telescope 8.4 m...
Las Cumbres Observatory Global Telescope (LCOGT) is a young organization dedicated to time-domain observations at optical and (potentially) near-IR wavelengths. To this end, LCOGT constructing worldwide network of telescopes, including the two 2 m Faulkes as many 17 × 1 23 40 cm telescopes. These telescopes initially will be outfitted for imaging (excepting telescopes) spectroscopy wavelengths between atmospheric UV cutoff roughly 1-μm limit silicon detectors. Since first LCOGT's are now...
The double explosion of SN 2009ip in 2012 raises questions about our understanding the late stages massive star evolution. Here we present a comprehensive study during its remarkable rebrightenings. High-cadence photometric and spectroscopic observations from GeV to radio band obtained variety ground-based space facilities (including Very Large Array, Swift, Fermi, Hubble Space Telescope, XMM) constrain be low energy (E ∼ 1050 erg for an ejecta mass ∼0.5 M☉) asymmetric complex medium shaped...
We present the first systematic investigation of spectral properties 17 Type Ic Supernovae (SNe Ic), 10 broad-lined SNe Ic-bl) without observed Gamma-Ray Bursts (GRBs) and 11 Ic-bl with GRBs (SN-GRBs) as a function time in order to probe their explosion conditions progenitors. analyze total 407 spectra, which were drawn from published spectra individual well densely time-sampled data Modjaz et al. (2014). In quantify diversity SN subtype, we construct average Ic, GRBs. find that 1994I is not...
We present 645 optical spectra of 73 supernovae (SNe) Types IIb, Ib, Ic, and broad-lined Ic. All these types are attributed to the core collapse massive stars, with varying degrees intact H He envelopes before explosion. The SNe in our sample have a mean redshift 〈cz〉 = 4200 km s−1. Most were gathered at Harvard-Smithsonian Center for Astrophysics (CfA) between 2004 2009. For 53 SNe, first published spectra. data coverage ranges from mere identification (1–3 spectra) few extensive series...
The nearby Type Ia supernova (SN Ia) SN 2011fe in M101 (cz = 241 km s−1) provides a unique opportunity to study the early evolution of "normal" Ia, its compositional structure, and elusive progenitor system. We present 18 high signal-to-noise spectra during first month beginning 1.2 days post-explosion with an average cadence 1.8 days. This gives clear picture how various line-forming species are distributed within outer layers ejecta, including that unburned material (C+O). follow C ii...
We present a densely-sampled, homogeneous set of light curves 64 low redshift (z < 0.05) stripped-envelope supernovae (SN type IIb, Ib, Ic and Ic-bl). These data were obtained between 2001 2009 at the Fred L. Whipple Observatory (FLWO) on Mt. Hopkins in Arizona, with optical FLWO 1.2-m near-infrared PAIRITEL 1.3-m telescopes. Our dataset consists 4543 photometric measurements 61 SN, including combination UBVRI, UBVr'i', u'BVr'i', 2142 JHKs 25 SN. This sample constitutes most extensive...
The Large Synoptic Survey Telescope is designed to provide an unprecedented optical imaging dataset that will support investigations of our Solar System, Galaxy and Universe, across half the sky over ten years repeated observation. However, exactly how LSST observations be taken (the observing strategy or "cadence") not yet finalized. In this dynamically-evolving community white paper, we explore detailed performance anticipated science expected depend on small changes strategy. Using...
In Paper I of this series, we showed that the ratio between stripped-envelope (SE) supernova (SN) and Type II SN rates reveals a significant SE deficiency in galaxies with stellar masses $\lesssim 10^{10}~{\rm M}_\odot$. Here, test result by splitting volume-limited subsample Lick Observatory Supernova Search (LOSS) sample into low- high-mass comparing relative various types found them. The LOSS contains 180 SNe impostors is complete for Ia out to 80 Mpc core-collapse 60 Mpc. All these...
Vera C. Rubin Observatory is a ground-based astronomical facility under construction, joint project of the National Science Foundation and U.S. Department Energy, designed to conduct multi-purpose 10-year optical survey southern hemisphere sky: Legacy Survey Space Time. Significant flexibility in strategy remains within constraints imposed by core science goals probing dark energy matter, cataloging Solar System, exploring transient sky, mapping Milky Way. The survey's massive data...
While it is generally accepted that Type Ia supernovae are the result of explosion a carbon–oxygen white dwarf accreting mass in binary system, details their genesis still elude us, and nature companion uncertain. Kasen points out presence non-degenerate progenitor system could leave an observable trace: flux excess early rise portion light curve caused by ejecta impact with itself. This would be only under favorable viewing angles, its intensity depends on companion. We searched for...
Super-luminous supernovae (SLSNe) are tremendously luminous explosions whose power sources and progenitors highly debated. Broad-lined SNe Ic (SNe Ic-bl) the only type of that connected with long-duration gamma ray bursts (GRBs). Studying spectral similarity difference between populations hydrogen-poor SLSNe (SLSNe Ic) stripped-envelope core-collapse SNe, in particular Ic-bl, can provide crucial observations to test predictions theories based on various source models progenitor models. In...
We present an analysis of the maximum light, near ultraviolet (NUV; 2900-5500 A) spectra 32 low redshift (0.001<z<0.08) Type Ia supernovae (SNe Ia), obtained with Hubble Space Telescope (HST). combine this spectroscopic sample high-quality gri light curves robotic telescopes to measure photometric parameters, such as stretch, optical colour, and brightness. By comparing our data a comparable SNe at intermediate-z (0.4<z<0.9), we detect modest spectral evolution (3-sigma), in sense that mean...
We present time series photometric and spectroscopic data for the transient SN 2009ip from start of its outburst in September 2012 until November 2013. This was collected primarily with new robotic capabilities Las Cumbres Observatory Global Telescope Network, a specialized facility domain astrophysics, includes supporting high-resolution spectroscopy Southern Astrophysical Research Telescope, Kitt Peak National Observatory, Gemini Observatory. Based on our nightly monitoring, we interpret...
Most types of supernovae (SNe) have yet to be connected with their progenitor stellar systems. Here, we reanalyze the 10-year SN sample collected during 1998-2008 by Lick Observatory Supernova Search (LOSS) in order constrain progenitors SNe Ia and stripped-envelope (SE SNe, i.e., SNe~IIb, Ib, Ic, broad-lined Ic). We matched LOSS galaxy spectroscopy from Sloan Digital Sky Survey measured rates as a function mass, specific star formation rate, oxygen abundance (metallicity). find significant...
ABSTRACT Using the largest spectroscopic data set of stripped-envelope core-collapse supernovae (stripped SNe), we present a systematic investigation spectral properties Type IIb SNe (SNe IIb), Ib Ib), and Ic Ic). Prior studies have been based on individual objects or small samples. Here, analyze 242 spectra 14 IIb, 262 21 Ib, 207 17 stripped SN Modjaz et al. other published SNe. Each in our sample has secure ID, date V -band maximum light, most multiple at different phases. We these as...
The discovery of the electromagnetic counterpart to binary neutron star merger GW170817 has opened era gravitational-wave multi-messenger astronomy. Rapid identification optical/infrared kilonova enabled a precise localization source, which paved way deep multi-wavelength follow-up and its myriad related science results. Fully exploiting this new territory exploration requires acquisition data from samples mergers other gravitational wave sources. After GW170817, frontier is now map...
Abstract The Vera C. Rubin Legacy Survey of Space and Time (LSST) holds the potential to revolutionize time domain astrophysics, reaching completely unexplored areas Universe mapping variability scales from minutes a decade. To prepare maximize LSST data for exploration transient variable Universe, one four pillars science, Transient Variable Stars Science Collaboration, eight Collaborations, has identified research interest requirements, paths enable them. While our roadmap is...
Using a method to discover and classify supernovae (SNe) in galaxy spectra, we detect 91 Type Ia SNe (SNe Ia) 16 II II) among 740,000 galaxies of all types 215,000 star-forming without active galactic nuclei, respectively, Data Release 9 the Sloan Digital Sky Survey. Of these SNe, 15 8 are new discoveries reported here for first time. We use our SN samples measure rates per unit mass as function stellar mass, star-formation rate (SFR), specific SFR (sSFR), derived by MPA-JHU Galspec...