Search Results - "Bargiacchi, G"

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  1. 1

    Gamma-ray bursts, quasars, baryonic acoustic oscillations, and supernovae Ia: new statistical insights and cosmological constraints by Bargiacchi, G, Dainotti, M G, Nagataki, S, Capozziello, S

    “…ABSTRACT The recent $\sim 4 \, \sigma$ Hubble constant, H0, tension is observed between the value of H0 from the cosmic microwave background (CMB) and Type Ia…”
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    Journal Article
  2. 2

    Quasar cosmology: dark energy evolution and spatial curvature by Bargiacchi, G, Benetti, M, Capozziello, S, Lusso, E, Risaliti, G, Signorini, M

    “…ABSTRACT We analyse some open debates in cosmology in light of the most updated quasar (QSO) sample, covering a wide redshift range up to $\mathit{ z}$ ∼ 7.5,…”
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    Journal Article
  3. 3

    Tensions with the flat ΛCDM model from high-redshift cosmography by Bargiacchi, G, Dainotti, M G, Capozziello, S

    “…ABSTRACT The longstanding search for the cosmological model that best describes the Universe has been made more intriguing since the recent discovery of the…”
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    Journal Article
  4. 4

    Optical and X-ray GRB Fundamental Planes as cosmological distance indicators by Dainotti, M G, Nielson, V, Sarracino, G, Rinaldi, E, Nagataki, S, Capozziello, S, Gnedin, O Y, Bargiacchi, G

    “…ABSTRACT Gamma-ray bursts (GRBs), can be employed as standardized candles, extending the distance ladder beyond Type Ia supernovae (SNe Ia, z = 2.26). We…”
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    Journal Article
  5. 5

    Quasars: Standard Candles up to z = 7.5 with the Precision of Supernovae Ia by Dainotti, M. G., Bargiacchi, G., Lenart, A. Ł., Nagataki, S., Capozziello, S.

    Published in The Astrophysical journal (01-06-2023)
    “…Abstract Currently, the Λ cold dark matter model, which relies on the existence of cold dark matter and a cosmological constant Λ, best describes the universe…”
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    Journal Article
  6. 6

    Quasars as high‐redshift standard candles by Risaliti, G., Lusso, E., Nardini, E., Bargiacchi, G., Bisogni, S., Sacchi, A., Signorini, M., Trefoloni, B.

    Published in Astronomische Nachrichten (01-05-2023)
    “…In the past few years, we built a Hubble diagram of quasars up to redshift z∼7$$ z\sim 7 $$, based on the nonlinear relation between quasars' x‐ray and UV…”
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    Journal Article
  7. 7

    On the statistical assumption on the distance moduli of Supernovae Ia and its impact on the determination of cosmological parameters by Dainotti, M.G., Bargiacchi, G., Bogdan, M., Capozziello, S., Nagataki, S.

    Published in Journal of high energy astrophysics (01-03-2024)
    “…Type Ia Supernovae (SNe Ia) are considered the most reliable standard candles and they have played an invaluable role in cosmology since the discovery of the…”
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    Journal Article
  8. 8

    Tensions with the flat $\boldsymbol{\Lambda}$CDM model from high-redshift cosmography by Bargiacchi, G, Dainotti, M. G, Capozziello, S

    Published 28-07-2023
    “…The longstanding search for the cosmological model that best describes the Universe has been made more intriguing since the recent discovery of the Hubble…”
    Get full text
    Journal Article
  9. 9

    Gamma-Ray Bursts, Quasars, Baryonic Acoustic Oscillations, and Supernovae Ia: new statistical insights and cosmological constraints by Bargiacchi, G, Dainotti, M. G, Nagataki, S, Capozziello, S

    Published 13-03-2023
    “…The recent $\sim 4 \, \sigma$ Hubble constant, $H_{0}$, tension is observed between the value of $H_{0}$ from the Cosmic Microwave Background (CMB) and Type Ia…”
    Get full text
    Journal Article
  10. 10

    Quasar cosmology: dark energy evolution and spatial curvature by Bargiacchi, G, Benetti, M, Capozziello, S, Lusso, E, Risaliti, G, Signorini, M

    Published 03-11-2021
    “…We analyse some open debates in cosmology in light of the most updated quasar (QSO) sample, covering a wide redshift range up to $z\sim7.5$, combined with type…”
    Get full text
    Journal Article
  11. 11

    Quasars as high-redshift standard candles by Sacchi, A, Risaliti, G, Signorini, M, Lusso, E, Nardini, E, Bargiacchi, G, Bisogni, S, Civano, F, Elvis, M, Fabbiano, G, Gilli, R, Trefoloni, B, Vignali, C

    Published 27-06-2022
    “…A&A 663, L7 (2022) The non-linear relation between the X-ray and ultraviolet (UV) luminosity in quasars has been used to derive quasar distances and to build a…”
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    Journal Article
  12. 12

    Quasars as standard candles III. Validation of a new sample for cosmological studies by Lusso, E, Risaliti, G, Nardini, E, Bargiacchi, G, Benetti, M, Bisogni, S, Capozziello, S, Civano, F, Eggleston, L, Elvis, M, Fabbiano, G, Gilli, R, Marconi, A, Paolillo, M, Piedipalumbo, E, Salvestrini, F, Signorini, M, Vignali, C

    Published 19-08-2020
    “…A&A 642, A150 (2020) We present a new catalogue of ~2,400 optically selected quasars with spectroscopic redshifts and X-ray observations from either Chandra or…”
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    Journal Article
  13. 13

    Abstract P6-03-01: Molecular Dissection of Breast Luminal Cell Transcription Factor Networks by Bargiacchi, FG, Earp, HS, Perou, CM

    Published in Cancer research (Chicago, Ill.) (15-12-2012)
    “…Abstract During mammary development, cellular differentiation and lineage commitment are driven by distinct growth cycles under the control of local epithelial…”
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