"Just Add Magic" is a magical book series written by Cindy Callaghan. The story revolves around three best friends named Kelly Quinn, Darbie O'Brien, and Hannah Parker-Kent. The trio comes across an old and mysterious cookbook in Kelly's grandmother's attic. Little do they know that this cookbook is not an ordinary one, but instead, it possesses magical powers. The book has a list of recipes that, when cooked with the right ingredients and performed with precise steps, can grant wishes. However, as the friends start experimenting with the recipes, they soon realize that every wish made has consequences.
Aims. In the presence of a sufficient amount of target material, γ-rays can be used as a tracer in the search for sources of Galactic cosmic rays (CRs). Here we present deep observations of the Galactic center (GC) region with the MAGIC telescopes and use them to infer the underlying CR distribution and to study the alleged PeV proton accelerator at the center of our Galaxy.
Those were collected at high zenith angles 58 70 deg , leading to a larger energy threshold, but also an increased effective collection area compared to low zenith observations. Energy, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria 26 Universitat de Barcelona, ICCUB, IEEC-UB, 08028 Barcelona, Spain 27 Port d Informació Científica PIC , 08193 Bellaterra, Barcelona, Spain 28 Dipartimento di Fisica, Università di Trieste, 34127 Trieste, Italy 29 INAF-Trieste and Dept.
However, as the friends start experimenting with the recipes, they soon realize that every wish made has consequences. The magic is not always controllable, and it sometimes leads to unexpected outcomes that they must navigate through. Throughout the series, the girls discover that the cookbook has a rich history and was written by their grandmothers.
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MAGIC Collaboration
V. A. Acciari 1 ,2 , S. Ansoldi 3 ,24 , L. A. Antonelli 4 , A. Arbet Engels 5 , D. Baack 6 , A. Babić 7 , B. Banerjee 8 , U. Barres de Almeida 9 , J. A. Barrio 10 , J. Becerra González 1 ,2 , W. Bednarek 11 , L. Bellizzi 12 , E. Bernardini 13 ,17 , A. Berti 14 , J. Besenrieder 15 , W. Bhattacharyya 13 , C. Bigongiari 4 , A. Biland 5 , O. Blanch 16 , G. Bonnoli 12 , Ž. Bošnjak 7 , G. Busetto 17 , R. Carosi 18 , G. Ceribella 15 , Y. Chai 15 , A. Chilingaryan 19 , S. Cikota 7 , S. M. Colak 16 , U. Colin 15 , E. Colombo 1 ,2 , J. L. Contreras 10 , J. Cortina 20 , S. Covino 4 , V. D’Elia 4 , P. Da Vela 18 , F. Dazzi 4 , A. De Angelis 17 , B. De Lotto 3 , M. Delfino 16 ,27 , J. Delgado 16 ,27 , D. Depaoli 14 , F. Di Pierro 14 , L. Di Venere 14 , E. Do Souto Espiñeira 16 , D. Dominis Prester 7 , A. Donini 3 , D. Dorner 21 , M. Doro 17 , D. Elsaesser 6 , V. Fallah Ramazani 22 , A. Fattorini 6 , A. Fernández-Barral 17 , G. Ferrara 4 , D. Fidalgo 10 , L. Foffano 17 , M. V. Fonseca 10 , L. Font 23 , C. Fruck 15 ,⋆⋆ , S. Fukami 24 , R. J. García López 1 ,2 , M. Garczarczyk 13 , S. Gasparyan 19 , M. Gaug 23 , N. Giglietto 14 , F. Giordano 14 , N. Godinović 7 , D. Green 15 , D. Guberman 16 , D. Hadasch 24 , A. Hahn 15 , J. Herrera 1 ,2 , J. Hoang 10 , D. Hrupec 7 , M. Hütten 15 , T. Inada 24 , S. Inoue 24 , K. Ishio 15 , Y. Iwamura 24 ,⋆⋆ , L. Jouvin 16 , D. Kerszberg 16 , H. Kubo 24 , J. Kushida 24 , A. Lamastra 4 , D. Lelas 7 , F. Leone 4 , E. Lindfors 22 , S. Lombardi 4 , F. Longo 3 ,28 , M. López 10 , R. López-Coto 17 , A. López-Oramas 1 ,2 , S. Loporchio 14 , B. Machado de Oliveira Fraga 9 , C. Maggio 23 , P. Majumdar 8 , M. Makariev 25 , M. Mallamaci 17 , G. Maneva 25 , M. Manganaro 7 , K. Mannheim 21 , L. Maraschi 4 , M. Mariotti 17 , M. Martínez 16 , S. Masuda 24 , D. Mazin 15 ,24 , S. Mićanović 7 , D. Miceli 3 , M. Minev 25 , J. M. Miranda 12 , R. Mirzoyan 15 , E. Molina 26 , A. Moralejo 16 , D. Morcuende 10 , V. Moreno 23 , E. Moretti 16 , P. Munar-Adrover 23 , V. Neustroev 22 , C. Nigro 13 , K. Nilsson 22 , D. Ninci 16 , K. Nishijima 24 , K. Noda 24 , L. Nogués 16 , M. Nöthe 6 , S. Nozaki 24 , S. Paiano 17 , J. Palacio 16 , M. Palatiello 3 , D. Paneque 15 , R. Paoletti 12 , J. M. Paredes 26 , P. Peñil 10 , M. Peresano 3 , M. Persic 3 ,29 , P. G. Prada Moroni 18 , E. Prandini 17 , I. Puljak 7 , W. Rhode 6 , M. Ribó 26 , J. Rico 16 , C. Righi 4 , A. Rugliancich 18 , L. Saha 10 , N. Sahakyan 19 , T. Saito 24 , S. Sakurai 24 , K. Satalecka 13 , K. Schmidt 6 , T. Schweizer 15 , J. Sitarek 11 , I. Šnidarić 7 , D. Sobczynska 11 , A. Somero 1 ,2 , A. Stamerra 4 , D. Strom 15 , M. Strzys 15 ,24 ,⋆⋆ , Y. Suda 15 , T. Surić 7 , M. Takahashi 24 , F. Tavecchio 4 , P. Temnikov 25 , T. Terzić 7 , M. Teshima 15 ,24 , N. Torres-Albà 26 , L. Tosti 14 , S. Tsujimoto 24 , V. Vagelli 14 , J. van Scherpenberg 15 , G. Vanzo 1 ,2 , M. Vazquez Acosta 1 ,2 , C. F. Vigorito 14 , V. Vitale 14 , I. Vovk 15 ,24 ,⋆⋆ , M. Will 15 and D. Zarić 7
1 Inst. de Astrofísica de Canarias, 38200 La Laguna, Spain
2 Universidad de La Laguna, Dpto. Astrofísica, 38206 La Laguna, Tenerife, Spain
3 Università di Udine and INFN Trieste, 33100 Udine, Italy
4 National Institute for Astrophysics (INAF), 00136 Rome, Italy
5 ETH Zurich, 8093 Zurich, Switzerland
6 Technische Universität Dortmund, 44221 Dortmund, Germany
7 Croatian Consortium: University of Rijeka, Department of Physics, 51000 Rijeka; University of Split – FESB, 21000 Split; University of Zagreb – FER, 10000 Zagreb; University of Osijek, 31000 Osijek; Rudjer Boskovic Institute, 10000 Zagreb, Croatia
8 Saha Institute of Nuclear Physics, HBNI, 1/AF Bidhannagar, Salt Lake, Sector-1, Kolkata 700064, India
9 Centro Brasileiro de Pesquisas Físicas (CBPF), 22290-180 URCA, Rio de Janeiro, RJ, Brasil
10 IPARCOS Institute and EMFTEL Department, Universidad Complutense de Madrid, 28040 Madrid, Spain
11 University of Łódź, Department of Astrophysics, 90236 Łódź, Poland
12 Università di Siena and INFN Pisa, 53100 Siena, Italy
13 Deutsches Elektronen-Synchrotron (DESY), 15738 Zeuthen, Germany
14 Istituto Nazionale Fisica Nucleare (INFN), 00044 Frascati, Roma, Italy
15 Max-Planck-Institut für Physik, 80805 München, Germany
16 Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), 08193 Bellaterra, Barcelona, Spain
17 Università di Padova and INFN, 35131 Padova, Italy
18 Università di Pisa and INFN Pisa, 56126 Pisa, Italy
19 ICRANet-Armenia at NAS RA, 0019 Yerevan, Armenia
20 Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, 28040 Madrid, Spain
21 Universität Würzburg, 97074 Würzburg, Germany
22 Finnish MAGIC Consortium: Finnish Centre of Astronomy with ESO (FINCA), University of Turku, 20014 Turku, Finland; Astronomy Research Unit, University of Oulu, 90014 Oulu, Finland
23 Departament de Física and CERES-IEEC, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
24 Japanese MAGIC Consortium: ICRR, The University of Tokyo, 277-8582 Chiba, Japan; Department of Physics, Kyoto University, 606-8502 Kyoto, Japan; Tokai University, 259-1292 Kanagawa, Japan; RIKEN, 351-0198 Saitama, Japan
25 Inst. for Nucl. Research and Nucl. Energy, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria
26 Universitat de Barcelona, ICCUB, IEEC-UB, 08028 Barcelona, Spain
27 Port d’Informació Científica (PIC), 08193 Bellaterra, Barcelona, Spain
28 Dipartimento di Fisica, Università di Trieste, 34127 Trieste, Italy
29 INAF-Trieste and Dept. of Physics & Astronomy, University of Bologna, Bologna, Italy
Received: 11 October 2019
Accepted: 24 May 2020
Aims. In the presence of a sufficient amount of target material, γ-rays can be used as a tracer in the search for sources of Galactic cosmic rays (CRs). Here we present deep observations of the Galactic center (GC) region with the MAGIC telescopes and use them to infer the underlying CR distribution and to study the alleged PeV proton accelerator at the center of our Galaxy.
Methods. We used data from ≈100 h observations of the GC region conducted with the MAGIC telescopes over five years (from 2012 to 2017). Those were collected at high zenith angles (58−70 deg), leading to a larger energy threshold, but also an increased effective collection area compared to low zenith observations. Using recently developed software tools, we derived the instrument response and background models required for extracting the diffuse emission in the region. We used existing measurements of the gas distribution in the GC region to derive the underlying distribution of CRs. We present a discussion of the associated biases and limitations of such an approach.
Results. We obtain a significant detection for all four model components used to fit our data (Sgr A*, “Arc”, G0.9+0.1, and an extended component for the Galactic Ridge). We observe no significant difference between the γ-ray spectra of the immediate GC surroundings, which we model as a point source (Sgr A*) and the Galactic Ridge. The latter can be described as a power-law with index 2 and an exponential cut-off at around 20 TeV with the significance of the cut-off being only 2σ. The derived cosmic-ray profile hints to a peak at the GC position and with a measured profile index of 1.2 ± 0.3 is consistent with the 1/r radial distance scaling law, which supports the hypothesis of a CR accelerator at the GC. We argue that the measurements of this profile are presently limited by our knowledge of the gas distribution in the GC vicinity.
Key words: gamma rays: general / gamma rays: ISM / Galaxy: center / cosmic rays
Tables and sky maps are only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/642/A190
Corresponding authors: Christian Fruck, Ievgen Vovk, Yuki Iwamura and Marcel Strzys (e-mail: [email protected]).
Methods. We used data from ≈100 h observations of the GC region conducted with the MAGIC telescopes over five years (from 2012 to 2017). Those were collected at high zenith angles (58−70 deg), leading to a larger energy threshold, but also an increased effective collection area compared to low zenith observations. Using recently developed software tools, we derived the instrument response and background models required for extracting the diffuse emission in the region. We used existing measurements of the gas distribution in the GC region to derive the underlying distribution of CRs. We present a discussion of the associated biases and limitations of such an approach.
They uncover hidden secrets, unravel mysteries, and encounter various challenges while dealing with the magic. As the girls delve deeper into the book's secrets, they learn about its origins and the responsibilities that come with using its magic. The "Just Add Magic" series combines elements of mystery, friendship, and fantasy. It explores themes of the importance of honesty, teamwork, and the consequences of one's actions. The girls not only use the magic for their own desires but also solve problems and help others in their community. The book series has gained popularity among middle-grade readers due to its engaging and imaginative storyline. It has also been adapted into a television series on Amazon Prime Video, further captivating fans with its visual representation of the magical world within the book. "Just Add Magic" offers a fun and exciting adventure for readers, encouraging them to think about the consequences of their actions while highlighting the value of friendship and the power of teamwork. It reminds readers that magic is not a cure-all solution, but something that should be handled with caution and responsibility..
Reviews for "Experience the enchantment of "Just Add Magic: The Book"
1. Emily - 2 out of 5 stars
I found "Just Add Magic: The Book" to be quite disappointing. The characters lacked depth and development, making it difficult to connect with them. The plot felt predictable and clichéd, lacking any real surprises or twists. Additionally, I found the writing style to be lackluster and lacking in creativity. Overall, I was not impressed with this book and would not recommend it.
2. Ryan - 1 out of 5 stars
"Just Add Magic: The Book" was a complete letdown. The story was tedious and dragged on, lacking any real excitement or suspense. The dialogue was clichéd and unrealistic, and the characters felt one-dimensional and unrelatable. The magic elements were poorly explained and felt forced into the narrative, making it difficult to fully immerse myself in the story. I would advise against wasting your time on this book.
3. Emma - 2 out of 5 stars
I had high hopes for "Just Add Magic: The Book," but unfortunately, it fell short of my expectations. The writing felt juvenile and the plot was unoriginal, following many clichés found in other fantasy novels. The pacing was inconsistent and it seemed as though the story dragged on unnecessarily at times. The character development was minimal, leaving me feeling detached from the story. Overall, I was left underwhelmed and won't be continuing with this series.