Zach Meisel Columbus ACS February 12 th Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 1
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1 Nuclear Chemistry in the Cosmos: The Birth of Elements in Stellar Death Zach Meisel Columbus ACS February 12 th 2018 Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 1
2 Nuclear physics experiments Astrophysics Nuclear physics theory theory Astronomical observations Nuclear Astrophysics Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 2
3 Why is this barn red? Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 3
4 Lots of iron! A lot less gold! Wm. F. Sheehan Ref. Chem Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 4
5 Where did this come from? I am the badge of Phanes Numismatik Lanz Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 5
6 Where did this come from? Numismatik Lanz Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 6
7 Where is gold made? Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 7
8 Where is gold made? Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 8
9 Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 9
10 LIGO/VIRGO NS Merger: Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 10
11 LIGO BH Merger: Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 11
12 Everything around you was processed in a star Jennifer Johnson, OSU Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 12
13 Everything around you was processed in a star Regular stars made ~1/2 of the stuff around you Most stars eventually become planetary nebulae Stellar explosions made most of the rest Some stars explode, like supernovae The gas released formed everything around you Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 13
14 Much like a chemical reaction, heat release from nuclear reactions can drive explosions Gummi bear in potassium chlorate: X-ray Burst on a neutron star: Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 14
15 Where does nuclear physics come in? Model output: Model: Reaction rate adjustor: Brightness Rate XRB Modeler 2000 Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 15
16 Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 16
17 Does this rate variation matter? Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 17
18 Does this rate variation matter? * * * * F (9) O (8) N (7) C (6) B (5) Be (4) Li (3) He (2) H (1) : 72 Kr(p,γ) 73 Rb As (33) Ge (32) Ga (31) Zn (30) Cu (29) Ni (28) Co (27) Fe (26) Mn (25) Cr (24) V (23) Ti (22) Sc (21) Ca (20) K (19) 2324 Ar (18) Cl (17) 2122 S (16) P (15) Si (14) Al (13) 1516 Mg (12) Na (11) 14 Ne (10) Tc (43) Mo (42) Nb (41) Zr (40) Y (39) Sr (38) Rb (37) Kr (36) Br (35) Se (34) : 15 O(α,γ) 19 Ne 1: 12 C(α,γ) 16 O Sb (51) Sn (50) In (49) Cd (48) Ag (47) Pd (46) Rh (45) Ru (44) Xe (54) I (53) Te (52) : 59 Cu(p,γ) 60 Zn 59 Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 18
19 Now that we know what s important what do we do about it? Beam Target Reaction Products Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 19
20 Isotope Production: Roulette in the Laboratory Good news everyone! I made! Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 20
21 Isotope Production: Roulette in the Laboratory Good news everyone! I made! Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 21
22 Beam Acceleration Family Guy Bill Beaty Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 22
23 Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 23
24 Radiation Detection NDT Resource Center Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 24
25 The world is a radioactive place! Arevalo Jr., McDonough, & Luong, Earth & Planetary Sci. Lett. (2009) Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 25
26 Nuclear physics can be useful Oh, and I suppose it was me who said what harm could it be to give the chickens a book on nuclear physics? Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 26
27 Where does strontium come from? Sr is a Ca substitute Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 27
28 Where does strontium come from? Sakurai s Object Model Results F. Herwig, U. Victoria Yukio Sakurai P. Woodward, U Minn. Knobs were tuned here! Sakurai s Object Modeler: Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 28
29 We are star stuff Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 29
30 Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 30
31 modeler results follow Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 31
32 12 C(α,γ) 16 O.has a marginal impact! back to the modeler Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 32
33 15 O(α,γ) 19 Ne.causes a significant change! back to the modeler Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 33
34 59 Cu(p,γ) 60 Zn.causes a significant change! back to the modeler Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 34
35 72 Kr(p,γ) 73 Rb.has a marginal impact! back to the modeler Nuclear Chemistry in the Cosmos (Zach Meisel, Ohio University) 35
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