Search Results - "Nanni, Ambra"

Evolution of thermally pulsing asymptotic giant branch stars - I. The colibri code by Marigo, Paola, Bressan, Alessandro, Nanni, Ambra, Girardi, Léo, Pumo, Maria Letizia

“…We present the colibri code for computing the evolution of stars along the thermally pulsing asymptotic giant branch (TP-AGB) phase. Compared to purely…”
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Evolution of thermally pulsing asymptotic giant branch stars - II. Dust production at varying metallicity by Nanni, Ambra, Bressan, Alessandro, Marigo, Paola, Girardi, Léo

“…We present the dust ejecta of the new stellar models for the thermally pulsing asymptotic giant branch (TP-AGB) phase computed with the colibri code. We use a…”
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A NEW GENERATION OF PARSEC-COLIBRI STELLAR ISOCHRONES INCLUDING THE TP-AGB PHASE by Marigo, Paola, Girardi, Léo, Bressan, Alessandro, Rosenfield, Philip, Aringer, Bernhard, Chen, Yang, Dussin, Marco, Nanni, Ambra, Pastorelli, Giada, Rodrigues, Thaíse S., Trabucchi, Michele, Bladh, Sara, Dalcanton, Julianne, Groenewegen, Martin A. T., Montalbán, Josefina, Wood, Peter R.

“…We introduce a new generation of PARSEC-COLIBRI stellar isochrones that includes a detailed treatment of the thermally pulsing asymptotic giant branch (TP-AGB)…”
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Evolution of thermally pulsing asymptotic giant branch stars - III. Dust production at supersolar metallicities by Nanni, Ambra, Bressan, Alessandro, Marigo, Paola, Girardi, Léo

“…We extend the formalism presented in our recent calculations of dust ejecta from the Thermally Pulsing Asymptotic Giant Branch (TP-AGB) phase to the case of…”
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The wind speeds, dust content, and mass-loss rates of evolved AGB and RSG stars at varying metallicity by Goldman, Steven R, van Loon, Jacco Th, Zijlstra, Albert A, Green, James A, Wood, Peter R, Nanni, Ambra, Imai, Hiroshi, Whitelock, Patricia A, Matsuura, Mikako, Groenewegen, Martin A T, Gomez, Jose F

“…We present the results of our survey of 1612-MHz circumstellar OH maser emission from asymptotic giant branch (AGB) stars and red supergiants (RSGs) in the…”
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Metallicity–PAH Relation of MIR-selected Star-forming Galaxies in AKARI North Ecliptic Pole-wide Survey by Shim, Hyunjin, Hwang, Ho Seong, Jeong, Woong-Seob, Toba, Yoshiki, Kim, Minjin, Kim, Dohyeong, Song, Hyunmi, Hashimoto, Tetsuya, Nakagawa, Takago, Nanni, Ambra, Pearson, William J., Takagi, Toshinobu

“…Abstract We investigate the variation in the mid-infrared spectral energy distributions of 373 low-redshift ( z < 0.4) star-forming galaxies, which reflects a…”
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A dearth of OH/IR stars in the Small Magellanic Cloud by Goldman, Steven R., van Loon, Jacco Th, Gómez, José F., Green, James A., Zijlstra, Albert A., Nanni, Ambra, Imai, Hiroshi, Whitelock, Patricia A., Groenewegen, Martin A. T., Oliveira, Joana M.

“…Abstract We present the results of targeted observations and a survey of 1612-, 1665- and 1667-MHz circumstellar OH maser emission from asymptotic giant branch…”
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AGB Stars and Their Circumstellar Envelopes. I. the VULCAN Code by Cristallo, Sergio, Piersanti, Luciano, Gobrecht, David, Crivellari, Lucio, Nanni, Ambra

“…The interplay between AGB interiors and their outermost layers, where molecules and dust form, is a problem of high complexity. As a consequence, physical…”
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Constraining dust properties in circumstellar envelopes of C-stars in the Small Magellanic Cloud: optical constants and grain size of carbon dust by Nanni, Ambra, Marigo, Paola, Groenewegen, Martin A. T., Aringer, Bernhard, Girardi, Léo, Pastorelli, Giada, Bressan, Alessandro, Bladh, Sara

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Dust Production around Carbon-Rich Stars: The Role of Metallicity by Nanni, Ambra, Cristallo, Sergio, van Loon, Jacco, Groenewegen, Martin

“…Background: Most of the stars in the Universe will end their evolution by losing their envelope during the thermally pulsing asymptotic giant branch (TP-AGB)…”
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Optical properties of amorphous carbon dust around C-stars: new constraints from 2MASS and Gaia observations by Nanni, Ambra

“…In this work the optical properties of amorphous carbon (amC) dust condensed around carbon(C)-stars are constrained by comparing the observations for the Large…”
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PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code by Bressan, Alessandro, Marigo, Paola, Girardi, Léo, Salasnich, Bernardo, Dal Cero, Claudia, Rubele, Stefano, Nanni, Ambra

“…Abstract We present the updated version of the code used to compute stellar evolutionary tracks in Padova. It is the result of a thorough revision of the major…”
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New parsec data base of α-enhanced stellar evolutionary tracks and isochrones – I. Calibration with 47 Tuc (NGC 104) and the improvement on RGB bump by Fu, Xiaoting, Bressan, Alessandro, Marigo, Paola, Girardi, Léo, Montalbán, Josefina, Chen, Yang, Nanni, Ambra

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Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Small Magellanic Cloud by Pastorelli, Giada, Marigo, Paola, Girardi, Léo, Chen, Yang, Rubele, Stefano, Trabucchi, Michele, Aringer, Bernhard, Bladh, Sara, Bressan, Alessandro, Montalbán, Josefina, Boyer, Martha L, Dalcanton, Julianne J, Eriksson, Kjell, Groenewegen, Martin A T, Höfner, Susanne, Lebzelter, Thomas, Nanni, Ambra, Rosenfield, Philip, Wood, Peter R, Cioni, Maria-Rosa L

“…Abstract The thermally pulsing asymptotic giant branch (TP-AGB) experienced by low- and intermediate-mass stars is one of the most uncertain phases of stellar…”
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Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Large Magellanic Cloud by Pastorelli, Giada, Marigo, Paola, Girardi, Léo, Aringer, Bernhard, Chen, Yang, Rubele, Stefano, Trabucchi, Michele, Bladh, Sara, Boyer, Martha L, Bressan, Alessandro, Dalcanton, Julianne J, Groenewegen, Martin A T, Lebzelter, Thomas, Mowlavi, Nami, Chubb, Katy L, Cioni, Maria-Rosa L, de Grijs, Richard, Ivanov, Valentin D, Nanni, Ambra, van Loon, Jacco Th, Zaggia, Simone

“…ABSTRACT Reliable models of the thermally pulsing asymptotic giant branch (TP-AGB) phase are of critical importance across astrophysics, including our…”
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Estimating the dust production rate of carbon stars in the Small Magellanic Cloud by Nanni, Ambra, Marigo, Paola, Girardi, Léo, Rubele, Stefano, Bressan, Alessandro, Groenewegen, Martin A. T., Pastorelli, Giada, Aringer, Bernhard

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The VMC survey – XXXI: The spatially resolved star formation history of the main body of the Small Magellanic Cloud by Rubele, Stefano, Pastorelli, Giada, Girardi, Léo, Cioni, Maria-Rosa L, Zaggia, Simone, Marigo, Paola, Bekki, Kenji, Bressan, Alessandro, Clementini, Gisella, de Grijs, Richard, Emerson, Jim, Groenewegen, Martin A T, Ivanov, Valentin D, Muraveva, Tatiana, Nanni, Ambra, Oliveira, Joana M, Ripepi, Vincenzo, Sun, Ning-Chen, van Loon, Jacco Th

“…ABSTRACT We recover the spatially resolved star formation history across the entire main body and Wing of the Small Magellanic Cloud (SMC), using 14 deep tile…”
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The mass-loss, expansion velocities, and dust production rates of carbon stars in the Magellanic Clouds by Nanni, Ambra, Groenewegen, Martin A T, Aringer, Bernhard, Rubele, Stefano, Bressan, Alessandro, van Loon, Jacco Th, Goldman, Steven R, Boyer, Martha L

“…ABSTRACT The properties of carbon stars in the Magellanic Clouds (MCs) and their total dust production rates are predicted by fitting their spectral energy…”
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Connecting the evolution of thermally pulsing asymptotic giant branch stars to the chemistry in their circumstellar envelopes – I. Hydrogen cyanide by Marigo, Paola, Ripamonti, Emanuele, Nanni, Ambra, Bressan, Alessandro, Girardi, Léo

“…We investigate the formation of hydrogen cyanide (HCN) in the inner circumstellar envelopes of thermally pulsing asymptotic giant branch (TP-AGB) stars. A…”
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The intrinsic reddening of the Magellanic Clouds as traced by background galaxies – III. The Large Magellanic Cloud by Bell, Cameron P. M., Cioni, Maria-Rosa L., Wright, Angus H., Nidever, David L., Chiang, I-Da, Choudhury, Samyaday, Groenewegen, Martin A. T., Pennock, Clara M., Choi, Yumi, de Grijs, Richard, Ivanov, Valentin D., Massana, Pol, Nanni, Ambra, Noël, Noelia E. D., Olsen, Knut, van Loon, Jacco Th, Vivas, A. Katherina, Zaritsky, Dennis

“…We present a map of the total intrinsic reddening across ≃ 90 deg2 of the Large Magellanic Cloud (LMC) derived using optical (ugriz) and near-infrared (IR;…”
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