Page 2 - Bigyan Katha May 2020

April 2020 | Vol 01 | Issue 01 g~L¨ m¤cv`K
Wt bKzj cvivki
m¤cv`K
wiÈz bv_
m¤cv`Kxq I cÖKvkbv ZË¡veavb
Awg‡Zk e¨vbvRx©
Dc‡`óvgÛjx
‡MŠZg emy wRòz emy f~cwZ PμeZx© ‰gÎx fÆvPvh© ïfeaZ ivq‡PŠayix mgxi mvnv mywgÎv ‡PŠayix
Aj1⁄4iY
wcqvjx wWRvBb
pealidezine@gmail.com
‡hvMv‡hv‡Mi wVKvbv
weÁvb cÖmvi, G-50, BÝwUwUDkbvj Gwiqv,
‡m±i 62, bqWv -201 309 (D.cÖ.)
‡dvb
+91-0120 2404430
d¨v·
+91-0120 2404437
vigyankatha@vigyanprasar.gov.in
B‡gj
I‡qemvBU
www.vigyanprasar.gov.in
ÒweÁvb K_vÓq cÖKvwkZ cÖeÜ, gZvgZ ev ‡jLK e¨enƒZ wP‡Îi wel‡q weÁvb cÖmvi ‡Kvbfv‡e `vqe× _vwK‡e bv|
ÒweÁvb K_vÓq cÖKvwkZ cÖeܸwj ‡KejgvÎ webvg~‡j¨ weZwiZ ‡Kvb gy`ÖYgva¨‡gB weÁvb cÖmv‡ii AwMÖg AbygwZi wfwˇZ Dchy3 m~Îg~‡ji D‡jøLmv‡c‡ÿ cybgy©`ÖY‡hvM¨|
weÁvb cÖmvi
G-50, BÝwUwUDkbvj Gwiqv,
‡m±i 62, bqWv -201 309 (D.c.Ö )-Gi c‡ÿbKjz cvivkiØvivcKÖ vwkZIgwy`ZÖ |
weÁvb msev` wegvb emy bimanbasu@gmail.com
G‡·vcjv‡b‡U MwjZ ‡jŠn e...wó
G‡·vcø¨v‡bU nj ‡mŠiRMr ewnf©~Z bÿ‡Îi Av‡kcv‡k cÖ`wÿYiZ MÖn| mv¤úÖwZKKv‡ji Avðh©Zg G‡·vcø¨v‡bUwU Avwe®‹...Z n‡q‡Q ‡hLv‡b MwjZ ‡jŠn e„wói nw`m cvIqv ‡M‡Q| wPwji AvUvKvgv giæf~wg A‡ji ESO-i wekvjvKvq ‡Uwj‡¯‹v‡c (Very Large Telescope, VLT), ESPRESSO (Echelle Spectrograph for Rocky Exponents and Stable Spectroscopic Observation) h‡š¿ GwU ‡`Lv ‡M‡Q| WASP-76b bv‡gi GB MÖnwU WASP-76 bÿ‡Îi Pvwiw`‡K ‡Nv‡i
I c„w_ex ‡_‡K Gi `~iZ¡ 460 Av‡jvKel©| weÁvbx‡`i g‡Z WASP-76b-i Kÿc_ bÿÎwUi Lye Kv‡Q hv c„w_exi Kÿc‡_i gvÎ 3%, hvi d‡j GB MÖ‡ni Av‡jvwKZ Ask me©`vB AZ¨šÍ Dò _v‡K Ges Zvi d‡jB MwjZ ‡jŠn e„wó nq| GB MÖ‡ni GKwUB Ask me©`v bÿ‡Îi w`‡K _v‡K I Av‡jvwKZ nq, hvi d‡j IB As‡ki ZvcgvÎv
2400 wWMÖx ‡mw›U‡MÖW ch©šÍ ‡cŠu‡Q hvq hv avZy‡K ev®úxf~Z Ki‡Z cv‡i| mv¤úÖwZK M‡elYv Abymv‡i ‡jŠn ev‡®úi GKwU fvwi ¯Íi Gi w`evfvM I AÜKvifvM‡K c„_K K‡i iv‡L (Nature, 11 March 2020 | doi. org/10.1038/s41586-020-2107-1)| ‡R‡bfv wek¦we`¨vj‡qi M‡elK David Ehrenreich e‡j‡Qb GB MÖ‡n cÖwZ mܨvq ‡jŠn e„wócvZ nq| ‡¯ú‡bi Centre for Astrobiology in Madrid-i ‡R¨vwZwe©Ávbx I ESPRESSO Science Team-Gi cÖavb María Rosa Zapatero Osorio-i g‡Z MÖ‡ni w`evfv‡M
‡h ‡jŠn ev®ú DTM¢~Z nq Zvi GKwU Ask MÖ‡ni N~Y©b MwZ I Zxea evqycÖev‡ni Rb¨ AÜKvigq ¯’v‡b cÖevwnZ nq I ZvcgvÎv nav‡mi Kvi‡Y Nbxf~Z n‡q ‡jŠn e„wói m„wó K‡i| ‡R¨vwZwe©Ávbx‡`i g‡Z ‡mŠigÛj ewnf©~Z MÖn¸wji ARmÖ Avðh©RbK NUbvejx g‡a¨ GwU GKwU AZ¨šÍ ¸iæZ¡c~Y© Avwe®‹vi|
‡ebwR‡bi MVb ‰ewPÎ
‡ebwRb (C6H6) A¨v‡iv‡gwUK ‰Re imvq‡bi ÿy`ÖZg ‡hŠM I GKwU eY©nxb wewkó
MÜhy3 Zij| bvbv cwjgvi ‡hŠ‡Mi g~j Dcv`vb wnmv‡e, eû AvaywbK cÖ‡qvMwe`¨vi g~j DcKiY Ges ïay imvq‡bB bq, B‡jKUawb‡·I ‡ebwR‡bi B‡jKU«b m3⁄4vi ‰ewkó¨ ¸iæZ¡c~Y©| Rvg©vb ‰Reimvqbwe` ‡KKz‡j cÖ_g e‡jb, ‡ebwR‡bi
QwU Kve©b cigvYy ch©vqμ‡g wm‡1⁄2j I Wej eÛ Øviv ci¯ú‡ii m‡1⁄2 hy3 n‡q GKwU lof~R e×k„sLj
MVb K‡i Ges GKwU K‡i nvB‡Wav‡Rb cigvYy hy3 K‡i| Wej e‡Ûi Ae¯’vb ‡f‡`
‡ebwR‡bi `ywU MVbMZ AvB‡mv‡Uvc ‰Zix nq Ges G`ywUi `ÖæZ cvi¯úwiK cwieZ©bB ‡ebwR‡bi ¯’vwq‡Z¡i KviY| 1931 mv‡j Av‡gwiKvb imvqbwe` wjbvm cvIwjs ‡ebwR‡bi e‡jb ‡ebwRb cÖK...Zc‡ÿ ‡KKz‡ji `ywU AvB‡mv‡Uv‡ci Ô‡i‡Rv‡bÝ nvBweaWÕ| ‡KKz‡ji wm×všÍ ‡ebwR‡bi
AvYweK MVb e¨vL¨v Ki‡Z cvi‡jI 42 B‡jKU«b hy3 ‡hŠMwUi ivmvqwbK
a‡g©i mwVK e¨vL¨v cvIqv hvqwb| weÁvbx‡`i g‡Z ‡ebwR‡bi me
B‡jKUab¸wj PZyg©vwÎK Z‡j _vKv m¤¢e bq| ZvB m¤úÖwZ MvwYwZKfv‡e
GB B‡jKUab m3⁄4vq