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1. Life cycle thinking strategies for constructing nZEB schools

Author

Elisabetta Palumbo, Rosa Romano, and Paola Gallo

Subjects
nearly zero energy building, school buildings, life cycle assessment, sustainable design, end-of-life, Architecture, NA1-9428
Abstract

By 2050, Italy, too, will have to achieve climate neutrality. Compared to current standards, almost 75% of the existing building stock is energy inefficient, and since 17% consists of school buildings, intervening in this type of building is essential to develop virtuous paths to achieve 2030 decarbonisation targets. Vertical envelopes are among the technological units that contribute the most to achieving better energy-environmental performance of the building, but at the same time, they have a certain weight in terms of carbon and embodied energy; moreover, LCA studies dealing with the vertical building envelope mainly focus on ‘cradle-to-grave’ impacts, neglecting end-of-life scenarios based on the recycling of selective demolition materials. This study explores the effects of adopting circular design strategies as LCA-based environmental impacts in an nZEB school. Article info Received: 29/03/2024; Revised: 29/04/2024; Accepted: 09/05/2024

Published
2024
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2. PDRs4All. VIII. Mid-infrared emission line inventory of the Orion Bar

Author

Van De Putte, Dries, primary, Meshaka, Raphael, additional, Trahin, Boris, additional, Habart, Emilie, additional, Peeters, Els, additional, Berné, Olivier, additional, Alarcón, Felipe, additional, Canin, Amélie, additional, Chown, Ryan, additional, Schroetter, Ilane, additional, Sidhu, Ameek, additional, Boersma, Christiaan, additional, Bron, Emeric, additional, Dartois, Emmanuel, additional, Javier Goicoechea, R., additional, Karl Gordon, D., additional, Onaka, Takashi, additional, Alexander Tielens, G.M., additional, Verstraete, Laurent, additional, Mark Wolfire, G., additional, Abergel, Alain, additional, Edwin Bergin, A., additional, Bernard-Salas, Jeronimo, additional, Cami, Jan, additional, Cuadrado, Sara, additional, Dicken, Daniel, additional, Elyajouri, Meriem, additional, Fuente, Asunción, additional, Joblin, Christine, additional, Khan, Baria, additional, Lacinbala, Ozan, additional, Languignon, David, additional, Le Gal, Romane, additional, Maragkoudakis, Alexandros, additional, Okada, Yoko, additional, Pasquini, Sofia, additional, Marc Pound, W., additional, Robberto, Massimo, additional, Röllig, Markus, additional, Schefter, Bethany, additional, Schirmer, Thiébaut, additional, Tabone, Benoit, additional, Vicente, Sílvia, additional, Zannese, Marion, additional, Sean Colgan, W.J., additional, He, Jinhua, additional, Rouillé, Gaël, additional, Togi, Aditya, additional, Aleman, Isabel, additional, Auchettl, Rebecca, additional, Antonio Baratta, Giuseppe, additional, Bejaoui, Salma, additional, Partha Bera, P., additional, John Black, H., additional, Boulanger, Francois, additional, Bouwman, Jordy, additional, Brandl, Bernhard, additional, Brechignac, Philippe, additional, Brünken, Sandra, additional, Buragohain, Mridusmita, additional, Burkhardt, Andrew, additional, Candian, Alessandra, additional, Cazaux, Stéphanie, additional, Cernicharo, Jose, additional, Chabot, Marin, additional, Chakraborty, Shubhadip, additional, Champion, Jason, additional, Ilsa Cooke, R., additional, Coutens, Audrey, additional, Nick Cox, L.J., additional, Demyk, Karine, additional, Donovan Meyer, Jennifer, additional, Foschino, Sacha, additional, García-Lario, Pedro, additional, Gerin, Maryvonne, additional, Carl Gottlieb, A., additional, Guillard, Pierre, additional, Gusdorf, Antoine, additional, Hartigan, Patrick, additional, Herbst, Eric, additional, Hornekaer, Liv, additional, Issa, Lina, additional, Jäger, Cornelia, additional, Janot-Pacheco, Eduardo, additional, Kannavou, Olga, additional, Kaufman, Michael, additional, Kemper, Francisca, additional, Kendrew, Sarah, additional, Maria Kirsanova, S., additional, Klaassen, Pamela, additional, Kwok, Sun, additional, Labiano, Álvaro, additional, Lai, Thomas S.-Y., additional, Le Floch, Bertrand, additional, Le Petit, Franck, additional, Li, Aigen, additional, Linz, Hendrik, additional, Cameron Mackie, J., additional, Suzanne Madden, C., additional, Mascetti, Joëlle, additional, Brett McGuire, A., additional, Merino, Pablo, additional, Elisabetta Micelotta, R., additional, Jon Morse, A., additional, Mulas, Giacomo, additional, Neelamkodan, Naslim, additional, Ohsawa, Ryou, additional, Omont, Alain, additional, Paladini, Roberta, additional, Elisabetta Palumbo, Maria, additional, Pathak, Amit, additional, Yvonne Pendleton, J., additional, Petrignani, Annemieke, additional, Pino, Thomas, additional, Puga, Elena, additional, Rangwala, Naseem, additional, Rapacioli, Mathias, additional, Rho, Jeonghee, additional, Ricca, Alessandra, additional, Roman-Duval, Julia, additional, Roser, Joseph, additional, Roueff, Evelyne, additional, Salama, Farid, additional, Dinalva Sales, A., additional, Sandstrom, Karin, additional, Sarre, Peter, additional, Sciamma-O'Brien, Ella, additional, Sellgren, Kris, additional, Sachindev Shenoy, S., additional, Teyssier, David, additional, Richard Thomas, D., additional, Adolf Witt, N., additional, Wootten, Alwyn, additional, Ysard, Nathalie, additional, Zettergren, Henning, additional, Zhang, Yong, additional, Ziwei Zhang, E., additional, and Zhen, Junfeng, additional

Published
2024
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3. PDRs4All. IX. Sulfur elemental abundance in the Orion Bar

Author

Fuente, Asunción, primary, Roueff, Evelyne, additional, Le Petit, Franck, additional, Le Bourlot, Jacques, additional, Bron, Emeric, additional, Mark Wolfire, G., additional, James Babb, F., additional, Yan, Pei-Gen, additional, Onaka, Takashi, additional, John Black, H., additional, Schroetter, Ilane, additional, Van De Putte, Dries, additional, Sidhu, Ameek, additional, Canin, Amélie, additional, Trahin, Boris, additional, Alarcón, Felipe, additional, Chown, Ryan, additional, Kannavou, Olga, additional, Berné, Olivier, additional, Habart, Emilie, additional, Peeters, Els, additional, Javier Goicoechea, R., additional, Zannese, Marion, additional, Meshaka, Raphael, additional, Okada, Yoko, additional, Röllig, Markus, additional, Le Gal, Romane, additional, Dinalva Sales, A., additional, Elisabetta Palumbo, Maria, additional, Antonio Baratta, Giuseppe, additional, Suzanne Madden, C., additional, Neelamkodan, Naslim, additional, Ziwei Zhang, E., additional, and Stancil, P.C., additional

Published
2024
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4. PROJECT-J: JWST Observations of HH46 IRS and Its Outflow. Overview and First Results

Author

Brunella Nisini, Maria Gabriela Navarro, Teresa Giannini, Simone Antoniucci, Patrick, J. Kavanagh, Patrick Hartigan, Francesca Bacciotti, Alessio Caratti o Garatti, Alberto Noriega-Crespo, Ewine F. van Dishoeck, Emma T. Whelan, Hector G. Arce, Sylvie Cabrit, Deirdre Coffey, Davide Fedele, Jochen Eislöffel, Maria Elisabetta Palumbo, Linda Podio, Tom P. Ray, Megan Schultze, Riccardo G. Urso, Juan M. Alcalá, Manuel A. Bautista, Claudio Codella, Thomas P. Greene, and Carlo F. Manara

Subjects
Young stellar objects, Protostars, Stellar jets, Infrared spectroscopy, Protoplanetary disks, Astrophysics, QB460-466
Abstract

We present the first results of the JWST program PROJECT-J (PROtostellar JEts Cradle Tested with JWST), designed to study the Class I source HH46 IRS and its outflow through NIRSpec and MIRI spectroscopy (1.66–28 μ m). The data provide line images (∼6.″6 in length with NIRSpec, and up to ∼20″ with MIRI) revealing unprecedented details within the jet, the molecular outflow, and the cavity. We detect, for the first time, the redshifted jet within ∼90 au from the source. Dozens of shock-excited forbidden lines are observed, including highly ionized species such as [Ne iii ] 15.5 μ m, suggesting that the gas is excited by high velocity (>80 km s ^−1 ) shocks in a relatively high-density medium. Images of H _2 lines at different excitations outline a complex molecular flow, where a bright cavity, molecular shells, and a jet-driven bow shock interact with and are shaped by the ambient conditions. Additional NIRCam 2 μ m images resolve the HH46 IRS ∼110 au binary system and suggest that the large asymmetries observed between the jet and the H _2 wide-angle emission could be due to two separate outflows being driven by the two sources. The spectra of the unresolved binary show deep ice bands and plenty of gaseous lines in absorption, likely originating in a cold envelope or disk. In conclusion, JWST has unraveled for the first time the origin of the HH46 IRS complex outflow demonstrating its capability to investigate embedded regions around young stars, which remain elusive even at near-IR wavelengths.

Published
2024
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